Finding the Third Proportional to 131,114 and 287,500

Step by Step Solution

1. Step 1: Write the proportion equation
   131,114 : 287,500 = 287,500 : x
2. Step 2: Convert to fraction form
   131,114/287,500 = 287,500/x
3. Step 3: Cross multiply
   131,114x = 287,500 × 287,500
4. Step 4: Simplify right side
   131,114x = 82,656,250,000
5. Step 5: Solve for x
   x = 82,656,250,000/131,114
6. Step 6: Final answer
   x = 630,415.13