Finding the Third Proportional to 423,651 and 649,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,651 : 649,003.50 = 649,003.50 : x
2. Step 2: Convert to fraction form
   423,651/649,003.50 = 649,003.50/x
3. Step 3: Cross multiply
   423,651x = 649,003.50 × 649,003.50
4. Step 4: Simplify right side
   423,651x = 421,205,543,012.25
5. Step 5: Solve for x
   x = 421,205,543,012.25/423,651
6. Step 6: Final answer
   x = 994,227.66