Finding the Third Proportional to 87,491 and 131,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,491 : 131,570.50 = 131,570.50 : x
2. Step 2: Convert to fraction form
   87,491/131,570.50 = 131,570.50/x
3. Step 3: Cross multiply
   87,491x = 131,570.50 × 131,570.50
4. Step 4: Simplify right side
   87,491x = 17,310,796,470.25
5. Step 5: Solve for x
   x = 17,310,796,470.25/87,491
6. Step 6: Final answer
   x = 197,858.03