Finding the Third Proportional to 131,248.50 and 286,554

Step by Step Solution

1. Step 1: Write the proportion equation
   131,248.50 : 286,554 = 286,554 : x
2. Step 2: Convert to fraction form
   131,248.50/286,554 = 286,554/x
3. Step 3: Cross multiply
   131,248.50x = 286,554 × 286,554
4. Step 4: Simplify right side
   131,248.50x = 82,113,194,916
5. Step 5: Solve for x
   x = 82,113,194,916/131,248.50
6. Step 6: Final answer
   x = 625,631.49