Finding the Third Proportional to 131,525 and 287,650

Step by Step Solution

1. Step 1: Write the proportion equation
   131,525 : 287,650 = 287,650 : x
2. Step 2: Convert to fraction form
   131,525/287,650 = 287,650/x
3. Step 3: Cross multiply
   131,525x = 287,650 × 287,650
4. Step 4: Simplify right side
   131,525x = 82,742,522,500
5. Step 5: Solve for x
   x = 82,742,522,500/131,525
6. Step 6: Final answer
   x = 629,101.10