Answer:
{23; 499,977}
{-38,941; 538,941}
Explanation:
You can pick any odd number you like and subtract it from 500,000 to find the one that will make the sum be 500,000.
Application
Choose one number as 23. Then the other number is 500,000 -23 = 499,977.
Two such numbers are (23; 499,977).
Nothing in the problem statement requires the values be positive. Choosing a negative number, we can find the other one in the same way:
Choose one number as -38,941. Then the other number is 500,000 -(-38,941) = 538,941.
Two such numbers are (-38,941; 538,941).