Finding the Third Proportional to 99,766.50 and 218,934

Step by Step Solution

1. Step 1: Write the proportion equation
   99,766.50 : 218,934 = 218,934 : x
2. Step 2: Convert to fraction form
   99,766.50/218,934 = 218,934/x
3. Step 3: Cross multiply
   99,766.50x = 218,934 × 218,934
4. Step 4: Simplify right side
   99,766.50x = 47,932,096,356
5. Step 5: Solve for x
   x = 47,932,096,356/99,766.50
6. Step 6: Final answer
   x = 480,442.80