Finding the Third Proportional to 87,016.50 and 138,461

Step by Step Solution

1. Step 1: Write the proportion equation
   87,016.50 : 138,461 = 138,461 : x
2. Step 2: Convert to fraction form
   87,016.50/138,461 = 138,461/x
3. Step 3: Cross multiply
   87,016.50x = 138,461 × 138,461
4. Step 4: Simplify right side
   87,016.50x = 19,171,448,521
5. Step 5: Solve for x
   x = 19,171,448,521/87,016.50
6. Step 6: Final answer
   x = 220,319.69