Find a Nth highest or lowest numbers in a given series of Doubles using C#

using System;
using System.Collections.Generic;
using System.Linq;
namespace ConsoleApplication2

{
    class Program

    {
        static void Main(string[] args)

        {

List<double> lstNumbers= new List<double>() { 1, 2.06, 34, -4, 5.90, 61.9, 7.8, 8, 9, 18.0,23.7 };



double minNum = lstNumbers.Min();  //lowest number

double maxNum = lstNumbers.Max();  //highest number  

         

 Console.WriteLine("Min = {0} , Max = {1}", minNum, maxNum); 



 Console.ReadKey(true);

        }

    }

}