Finding the Third Proportional to 100,885.50 and 141,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,885.50 : 141,385.50 = 141,385.50 : x
2. Step 2: Convert to fraction form
   100,885.50/141,385.50 = 141,385.50/x
3. Step 3: Cross multiply
   100,885.50x = 141,385.50 × 141,385.50
4. Step 4: Simplify right side
   100,885.50x = 19,989,859,610.25
5. Step 5: Solve for x
   x = 19,989,859,610.25/100,885.50
6. Step 6: Final answer
   x = 198,144.03