Finding the Third Proportional to 1,397,904 and 3,057,519

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,904 : 3,057,519 = 3,057,519 : x
2. Step 2: Convert to fraction form
   1,397,904/3,057,519 = 3,057,519/x
3. Step 3: Cross multiply
   1,397,904x = 3,057,519 × 3,057,519
4. Step 4: Simplify right side
   1,397,904x = 9,348,422,435,361
5. Step 5: Solve for x
   x = 9,348,422,435,361/1,397,904
6. Step 6: Final answer
   x = 6,687,456.67