Finding the Third Proportional to 87,437 and 131,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,437 : 131,156.50 = 131,156.50 : x
2. Step 2: Convert to fraction form
   87,437/131,156.50 = 131,156.50/x
3. Step 3: Cross multiply
   87,437x = 131,156.50 × 131,156.50
4. Step 4: Simplify right side
   87,437x = 17,202,027,492.25
5. Step 5: Solve for x
   x = 17,202,027,492.25/87,437
6. Step 6: Final answer
   x = 196,736.25