Finding the Third Proportional to 218,113 and 462,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   218,113 : 462,591.50 = 462,591.50 : x
2. Step 2: Convert to fraction form
   218,113/462,591.50 = 462,591.50/x
3. Step 3: Cross multiply
   218,113x = 462,591.50 × 462,591.50
4. Step 4: Simplify right side
   218,113x = 213,990,895,872.25
5. Step 5: Solve for x
   x = 213,990,895,872.25/218,113
6. Step 6: Final answer
   x = 981,101.06