Finding the Third Proportional to 99,199.50 and 141,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,199.50 : 141,799.50 = 141,799.50 : x
2. Step 2: Convert to fraction form
   99,199.50/141,799.50 = 141,799.50/x
3. Step 3: Cross multiply
   99,199.50x = 141,799.50 × 141,799.50
4. Step 4: Simplify right side
   99,199.50x = 20,107,098,200.25
5. Step 5: Solve for x
   x = 20,107,098,200.25/99,199.50
6. Step 6: Final answer
   x = 202,693.54