Finding the Third Proportional to 1,421,469 and 3,108,663

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,469 : 3,108,663 = 3,108,663 : x
2. Step 2: Convert to fraction form
   1,421,469/3,108,663 = 3,108,663/x
3. Step 3: Cross multiply
   1,421,469x = 3,108,663 × 3,108,663
4. Step 4: Simplify right side
   1,421,469x = 9,663,785,647,569
5. Step 5: Solve for x
   x = 9,663,785,647,569/1,421,469
6. Step 6: Final answer
   x = 6,798,449.81