Finding the Third Proportional to 207,616.50 and 454,005

Step by Step Solution

1. Step 1: Write the proportion equation
   207,616.50 : 454,005 = 454,005 : x
2. Step 2: Convert to fraction form
   207,616.50/454,005 = 454,005/x
3. Step 3: Cross multiply
   207,616.50x = 454,005 × 454,005
4. Step 4: Simplify right side
   207,616.50x = 206,120,540,025
5. Step 5: Solve for x
   x = 206,120,540,025/207,616.50
6. Step 6: Final answer
   x = 992,794.60