Finding the Third Proportional to 1,397,724 and 3,057,156

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,724 : 3,057,156 = 3,057,156 : x
2. Step 2: Convert to fraction form
   1,397,724/3,057,156 = 3,057,156/x
3. Step 3: Cross multiply
   1,397,724x = 3,057,156 × 3,057,156
4. Step 4: Simplify right side
   1,397,724x = 9,346,202,808,336
5. Step 5: Solve for x
   x = 9,346,202,808,336/1,397,724
6. Step 6: Final answer
   x = 6,686,729.86