Finding the Third Proportional to 431,938.50 and 595,419

Step by Step Solution

1. Step 1: Write the proportion equation
   431,938.50 : 595,419 = 595,419 : x
2. Step 2: Convert to fraction form
   431,938.50/595,419 = 595,419/x
3. Step 3: Cross multiply
   431,938.50x = 595,419 × 595,419
4. Step 4: Simplify right side
   431,938.50x = 354,523,785,561
5. Step 5: Solve for x
   x = 354,523,785,561/431,938.50
6. Step 6: Final answer
   x = 820,773.76