Conditional Statements - Sort Three Numbers

using System;

class SortThreeRealValues
{
    static void Main(string[] args)
    {
        //Option 2
        Console.WriteLine();
        Console.WriteLine();
        double firstNumber, secondNumber, thirdNumber;
        Console.Write("Enter first number: ");
        firstNumber = double.Parse(Console.ReadLine());
        Console.Write("Enter second number: ");
        secondNumber = double.Parse(Console.ReadLine());
        Console.Write("Enter third number: ");
        thirdNumber = double.Parse(Console.ReadLine());

        if (firstNumber >= secondNumber && firstNumber >= thirdNumber)
        {
            if (secondNumber >= thirdNumber)
            {
                Console.WriteLine("{0}, {1}, {2}", firstNumber, secondNumber, thirdNumber);
            }

            else
            {
                Console.WriteLine("{0}, {1}, {2}", firstNumber, thirdNumber, secondNumber);
            }
        }

        else if (secondNumber >= firstNumber && secondNumber >= thirdNumber)
        {
            if (firstNumber >= thirdNumber)
            {
                Console.WriteLine("{0}, {1}, {2}", secondNumber, thirdNumber, firstNumber);
            }

            else
            {
                Console.WriteLine("{0}, {1}, {2}", secondNumber, thirdNumber, firstNumber);
            }
        }

        else
        {
            if (firstNumber >= secondNumber)
            {
                Console.WriteLine("{0}, {1}, {2}", thirdNumber, firstNumber, secondNumber);
            }

            else
            {
                Console.WriteLine("{0}, {1}, {2}", thirdNumber, secondNumber, firstNumber);
            }

        }
    }
}