Finding the Third Proportional to 90,969 and 141,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,969 : 141,988.50 = 141,988.50 : x
2. Step 2: Convert to fraction form
   90,969/141,988.50 = 141,988.50/x
3. Step 3: Cross multiply
   90,969x = 141,988.50 × 141,988.50
4. Step 4: Simplify right side
   90,969x = 20,160,734,132.25
5. Step 5: Solve for x
   x = 20,160,734,132.25/90,969
6. Step 6: Final answer
   x = 221,622.03