Finding the Third Proportional to 90,167.50 and 140,710.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,167.50 : 140,710.25 = 140,710.25 : x
2. Step 2: Convert to fraction form
   90,167.50/140,710.25 = 140,710.25/x
3. Step 3: Cross multiply
   90,167.50x = 140,710.25 × 140,710.25
4. Step 4: Simplify right side
   90,167.50x = 19,799,374,455.06
5. Step 5: Solve for x
   x = 19,799,374,455.06/90,167.50
6. Step 6: Final answer
   x = 219,584.38