Finding the Median value of a List

median.cs

class Program
{
    static void Main(string[] args)
    {
        List<double> exampleOne = new List<double> { 1, 3, 3, 6, 7, 8, 9 };
        List<double> exampleTwo = new List<double> { 1, 2, 3, 4, 5, 6, 8, 9 };
        List<double> exampleThree = new List<double> { 0, 1, 2, 4, 6, 5, 3 };
        double medianOne = exampleOne.Median();
        double medianTwo = exampleTwo.Median();
        double medianThree = exampleThree.Median();
        Console.WriteLine(medianOne); // 6
        Console.WriteLine(medianTwo); // 4.5
        Console.WriteLine(medianThree); // 3
        Console.ReadLine();
    }
}

public static class ListExtensions
{
    public static double Median(this List<double> inputList)
    {
        double[] xs = inputList.ToArray();
        Array.Sort(xs);
        return xs[xs.Length / 2];
    }
}