Finding the Third Proportional to 2,644,864 and 5,729,280

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644,864 : 5,729,280 = 5,729,280 : x
2. Step 2: Convert to fraction form
   2,644,864/5,729,280 = 5,729,280/x
3. Step 3: Cross multiply
   2,644,864x = 5,729,280 × 5,729,280
4. Step 4: Simplify right side
   2,644,864x = 32,824,649,318,400
5. Step 5: Solve for x
   x = 32,824,649,318,400/2,644,864
6. Step 6: Final answer
   x = 12,410,713.49