Finding the Third Proportional to 90,553.50 and 141,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,553.50 : 141,205.50 = 141,205.50 : x
2. Step 2: Convert to fraction form
   90,553.50/141,205.50 = 141,205.50/x
3. Step 3: Cross multiply
   90,553.50x = 141,205.50 × 141,205.50
4. Step 4: Simplify right side
   90,553.50x = 19,938,993,230.25
5. Step 5: Solve for x
   x = 19,938,993,230.25/90,553.50
6. Step 6: Final answer
   x = 220,190.20