Finding the Third Proportional to 99,293.50 and 216,059

Step by Step Solution

1. Step 1: Write the proportion equation
   99,293.50 : 216,059 = 216,059 : x
2. Step 2: Convert to fraction form
   99,293.50/216,059 = 216,059/x
3. Step 3: Cross multiply
   99,293.50x = 216,059 × 216,059
4. Step 4: Simplify right side
   99,293.50x = 46,681,491,481
5. Step 5: Solve for x
   x = 46,681,491,481/99,293.50
6. Step 6: Final answer
   x = 470,136.43