Finding the Third Proportional to 131,665.50 and 284,391

Step by Step Solution

1. Step 1: Write the proportion equation
   131,665.50 : 284,391 = 284,391 : x
2. Step 2: Convert to fraction form
   131,665.50/284,391 = 284,391/x
3. Step 3: Cross multiply
   131,665.50x = 284,391 × 284,391
4. Step 4: Simplify right side
   131,665.50x = 80,878,240,881
5. Step 5: Solve for x
   x = 80,878,240,881/131,665.50
6. Step 6: Final answer
   x = 614,270.56