Finding the Third Proportional to 40,867.50 and 64,218

Step by Step Solution

1. Step 1: Write the proportion equation
   40,867.50 : 64,218 = 64,218 : x
2. Step 2: Convert to fraction form
   40,867.50/64,218 = 64,218/x
3. Step 3: Cross multiply
   40,867.50x = 64,218 × 64,218
4. Step 4: Simplify right side
   40,867.50x = 4,123,951,524
5. Step 5: Solve for x
   x = 4,123,951,524/40,867.50
6. Step 6: Final answer
   x = 100,910.30