Finding the Third Proportional to 90,088.50 and 141,320.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,088.50 : 141,320.25 = 141,320.25 : x
2. Step 2: Convert to fraction form
   90,088.50/141,320.25 = 141,320.25/x
3. Step 3: Cross multiply
   90,088.50x = 141,320.25 × 141,320.25
4. Step 4: Simplify right side
   90,088.50x = 19,971,413,060.06
5. Step 5: Solve for x
   x = 19,971,413,060.06/90,088.50
6. Step 6: Final answer
   x = 221,686.60