Finding the Third Proportional to 315,760 and 499,938

Step by Step Solution

1. Step 1: Write the proportion equation
   315,760 : 499,938 = 499,938 : x
2. Step 2: Convert to fraction form
   315,760/499,938 = 499,938/x
3. Step 3: Cross multiply
   315,760x = 499,938 × 499,938
4. Step 4: Simplify right side
   315,760x = 249,938,003,844
5. Step 5: Solve for x
   x = 249,938,003,844/315,760
6. Step 6: Final answer
   x = 791,544.22