Finding the Third Proportional to 1,397,016 and 2,135,616

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,016 : 2,135,616 = 2,135,616 : x
2. Step 2: Convert to fraction form
   1,397,016/2,135,616 = 2,135,616/x
3. Step 3: Cross multiply
   1,397,016x = 2,135,616 × 2,135,616
4. Step 4: Simplify right side
   1,397,016x = 4,560,855,699,456
5. Step 5: Solve for x
   x = 4,560,855,699,456/1,397,016
6. Step 6: Final answer
   x = 3,264,712.57