Finding the Third Proportional to 1,398,240 and 2,979,504

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,240 : 2,979,504 = 2,979,504 : x
2. Step 2: Convert to fraction form
   1,398,240/2,979,504 = 2,979,504/x
3. Step 3: Cross multiply
   1,398,240x = 2,979,504 × 2,979,504
4. Step 4: Simplify right side
   1,398,240x = 8,877,444,086,016
5. Step 5: Solve for x
   x = 8,877,444,086,016/1,398,240
6. Step 6: Final answer
   x = 6,349,013.11