Finding the Third Proportional to 2,728,355 and 4,279,979

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728,355 : 4,279,979 = 4,279,979 : x
2. Step 2: Convert to fraction form
   2,728,355/4,279,979 = 4,279,979/x
3. Step 3: Cross multiply
   2,728,355x = 4,279,979 × 4,279,979
4. Step 4: Simplify right side
   2,728,355x = 18,318,220,240,441
5. Step 5: Solve for x
   x = 18,318,220,240,441/2,728,355
6. Step 6: Final answer
   x = 6,714,016.41