Finding the Third Proportional to 443,146.50 and 664,552.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,146.50 : 664,552.50 = 664,552.50 : x
2. Step 2: Convert to fraction form
   443,146.50/664,552.50 = 664,552.50/x
3. Step 3: Cross multiply
   443,146.50x = 664,552.50 × 664,552.50
4. Step 4: Simplify right side
   443,146.50x = 441,630,025,256.25
5. Step 5: Solve for x
   x = 441,630,025,256.25/443,146.50
6. Step 6: Final answer
   x = 996,577.94