Finding the Third Proportional to 1,397,898 and 3,057,507

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,898 : 3,057,507 = 3,057,507 : x
2. Step 2: Convert to fraction form
   1,397,898/3,057,507 = 3,057,507/x
3. Step 3: Cross multiply
   1,397,898x = 3,057,507 × 3,057,507
4. Step 4: Simplify right side
   1,397,898x = 9,348,349,055,049
5. Step 5: Solve for x
   x = 9,348,349,055,049/1,397,898
6. Step 6: Final answer
   x = 6,687,432.88