Finding the Third Proportional to 1,397,862 and 3,057,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,862 : 3,057,430 = 3,057,430 : x
2. Step 2: Convert to fraction form
   1,397,862/3,057,430 = 3,057,430/x
3. Step 3: Cross multiply
   1,397,862x = 3,057,430 × 3,057,430
4. Step 4: Simplify right side
   1,397,862x = 9,347,878,204,900
5. Step 5: Solve for x
   x = 9,347,878,204,900/1,397,862
6. Step 6: Final answer
   x = 6,687,268.27