Finding the Third Proportional to 89,455.50 and 121,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,455.50 : 121,061.25 = 121,061.25 : x
2. Step 2: Convert to fraction form
   89,455.50/121,061.25 = 121,061.25/x
3. Step 3: Cross multiply
   89,455.50x = 121,061.25 × 121,061.25
4. Step 4: Simplify right side
   89,455.50x = 14,655,826,251.56
5. Step 5: Solve for x
   x = 14,655,826,251.56/89,455.50
6. Step 6: Final answer
   x = 163,833.71