Finding the Third Proportional to 131,498 and 288,025

Step by Step Solution

1. Step 1: Write the proportion equation
   131,498 : 288,025 = 288,025 : x
2. Step 2: Convert to fraction form
   131,498/288,025 = 288,025/x
3. Step 3: Cross multiply
   131,498x = 288,025 × 288,025
4. Step 4: Simplify right side
   131,498x = 82,958,400,625
5. Step 5: Solve for x
   x = 82,958,400,625/131,498
6. Step 6: Final answer
   x = 630,871.96