Finding the Third Proportional to 89,747.25 and 140,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,747.25 : 140,799.50 = 140,799.50 : x
2. Step 2: Convert to fraction form
   89,747.25/140,799.50 = 140,799.50/x
3. Step 3: Cross multiply
   89,747.25x = 140,799.50 × 140,799.50
4. Step 4: Simplify right side
   89,747.25x = 19,824,499,200.25
5. Step 5: Solve for x
   x = 19,824,499,200.25/89,747.25
6. Step 6: Final answer
   x = 220,892.55