Finding the Third Proportional to 443,329.50 and 649,275

Step by Step Solution

1. Step 1: Write the proportion equation
   443,329.50 : 649,275 = 649,275 : x
2. Step 2: Convert to fraction form
   443,329.50/649,275 = 649,275/x
3. Step 3: Cross multiply
   443,329.50x = 649,275 × 649,275
4. Step 4: Simplify right side
   443,329.50x = 421,558,025,625
5. Step 5: Solve for x
   x = 421,558,025,625/443,329.50
6. Step 6: Final answer
   x = 950,890.99