Finding the Third Proportional to 1,397,616 and 2,108,016

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,616 : 2,108,016 = 2,108,016 : x
2. Step 2: Convert to fraction form
   1,397,616/2,108,016 = 2,108,016/x
3. Step 3: Cross multiply
   1,397,616x = 2,108,016 × 2,108,016
4. Step 4: Simplify right side
   1,397,616x = 4,443,731,456,256
5. Step 5: Solve for x
   x = 4,443,731,456,256/1,397,616
6. Step 6: Final answer
   x = 3,179,508.15