Finding the Third Proportional to 3,439,707 and 7,161,738

Step by Step Solution

1. Step 1: Write the proportion equation
   3,439,707 : 7,161,738 = 7,161,738 : x
2. Step 2: Convert to fraction form
   3,439,707/7,161,738 = 7,161,738/x
3. Step 3: Cross multiply
   3,439,707x = 7,161,738 × 7,161,738
4. Step 4: Simplify right side
   3,439,707x = 51,290,491,180,644
5. Step 5: Solve for x
   x = 51,290,491,180,644/3,439,707
6. Step 6: Final answer
   x = 14,911,296.57