Finding the Third Proportional to 443,340 and 649,282.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,340 : 649,282.50 = 649,282.50 : x
2. Step 2: Convert to fraction form
   443,340/649,282.50 = 649,282.50/x
3. Step 3: Cross multiply
   443,340x = 649,282.50 × 649,282.50
4. Step 4: Simplify right side
   443,340x = 421,567,764,806.25
5. Step 5: Solve for x
   x = 421,567,764,806.25/443,340
6. Step 6: Final answer
   x = 950,890.43