Finding the Third Proportional to 131,469 and 287,952

Step by Step Solution

1. Step 1: Write the proportion equation
   131,469 : 287,952 = 287,952 : x
2. Step 2: Convert to fraction form
   131,469/287,952 = 287,952/x
3. Step 3: Cross multiply
   131,469x = 287,952 × 287,952
4. Step 4: Simplify right side
   131,469x = 82,916,354,304
5. Step 5: Solve for x
   x = 82,916,354,304/131,469
6. Step 6: Final answer
   x = 630,691.30