Having a problem comparing three numbers

[gyneisler]

My display is producing:

Enter the first number:234
Enter the second number:2
Enter the Third number:3
The largest number is 3

#include <iostream>
using namespace std;

double larger(double n1, double n2, double n3);
int main()
{

double num; 
double max; 
int count;
double num1, num2,num3; 

cout<<"Enter the first number:";
cin>> num1;

cout<<"Enter the second number:";
cin>> num2;

cout<<"Enter the Third number:";
cin>> num3;
 

max = (num1, num2, num3); 


cout << "The largest number is " << max
<< endl; 

return 0;
}

double larger(double n1, double n2, double n3)
{
if (n1 > n2 && n1 > n3)

return n1;


else if (n2 > n3)

return n2;

else

return n3;
}

[fafner]

Line 23 should be

max = larger(num1, num2, num3);