Finding the Third Proportional to 57,700.50 and 121,230

Step by Step Solution

1. Step 1: Write the proportion equation
   57,700.50 : 121,230 = 121,230 : x
2. Step 2: Convert to fraction form
   57,700.50/121,230 = 121,230/x
3. Step 3: Cross multiply
   57,700.50x = 121,230 × 121,230
4. Step 4: Simplify right side
   57,700.50x = 14,696,712,900
5. Step 5: Solve for x
   x = 14,696,712,900/57,700.50
6. Step 6: Final answer
   x = 254,706.86