Finding the Third Proportional to 1,397,911 and 3,057,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,911 : 3,057,490 = 3,057,490 : x
2. Step 2: Convert to fraction form
   1,397,911/3,057,490 = 3,057,490/x
3. Step 3: Cross multiply
   1,397,911x = 3,057,490 × 3,057,490
4. Step 4: Simplify right side
   1,397,911x = 9,348,245,100,100
5. Step 5: Solve for x
   x = 9,348,245,100,100/1,397,911
6. Step 6: Final answer
   x = 6,687,296.33