Finding the Third Proportional to 443,063.25 and 664,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,063.25 : 664,456.50 = 664,456.50 : x
2. Step 2: Convert to fraction form
   443,063.25/664,456.50 = 664,456.50/x
3. Step 3: Cross multiply
   443,063.25x = 664,456.50 × 664,456.50
4. Step 4: Simplify right side
   443,063.25x = 441,502,440,392.25
5. Step 5: Solve for x
   x = 441,502,440,392.25/443,063.25
6. Step 6: Final answer
   x = 996,477.23