Finding the Third Proportional to 239,369 and 371,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,369 : 371,693.50 = 371,693.50 : x
2. Step 2: Convert to fraction form
   239,369/371,693.50 = 371,693.50/x
3. Step 3: Cross multiply
   239,369x = 371,693.50 × 371,693.50
4. Step 4: Simplify right side
   239,369x = 138,156,057,942.25
5. Step 5: Solve for x
   x = 138,156,057,942.25/239,369
6. Step 6: Final answer
   x = 577,167.71