Finding the Third Proportional to 299,466 and 649,294.50

Step by Step Solution

1. Step 1: Write the proportion equation
   299,466 : 649,294.50 = 649,294.50 : x
2. Step 2: Convert to fraction form
   299,466/649,294.50 = 649,294.50/x
3. Step 3: Cross multiply
   299,466x = 649,294.50 × 649,294.50
4. Step 4: Simplify right side
   299,466x = 421,583,347,730.25
5. Step 5: Solve for x
   x = 421,583,347,730.25/299,466
6. Step 6: Final answer
   x = 1,407,783.68