Finding the Third Proportional to 1,397,728 and 3,057,164

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,728 : 3,057,164 = 3,057,164 : x
2. Step 2: Convert to fraction form
   1,397,728/3,057,164 = 3,057,164/x
3. Step 3: Cross multiply
   1,397,728x = 3,057,164 × 3,057,164
4. Step 4: Simplify right side
   1,397,728x = 9,346,251,722,896
5. Step 5: Solve for x
   x = 9,346,251,722,896/1,397,728
6. Step 6: Final answer
   x = 6,686,745.72