Finding the Third Proportional to 57,641.50 and 126,218

Step by Step Solution

1. Step 1: Write the proportion equation
   57,641.50 : 126,218 = 126,218 : x
2. Step 2: Convert to fraction form
   57,641.50/126,218 = 126,218/x
3. Step 3: Cross multiply
   57,641.50x = 126,218 × 126,218
4. Step 4: Simplify right side
   57,641.50x = 15,930,983,524
5. Step 5: Solve for x
   x = 15,930,983,524/57,641.50
6. Step 6: Final answer
   x = 276,380.45