Finding the Third Proportional to 131,036.50 and 284,321

Step by Step Solution

1. Step 1: Write the proportion equation
   131,036.50 : 284,321 = 284,321 : x
2. Step 2: Convert to fraction form
   131,036.50/284,321 = 284,321/x
3. Step 3: Cross multiply
   131,036.50x = 284,321 × 284,321
4. Step 4: Simplify right side
   131,036.50x = 80,838,431,041
5. Step 5: Solve for x
   x = 80,838,431,041/131,036.50
6. Step 6: Final answer
   x = 616,915.37