Finding the Third Proportional to 2,607,988 and 3,989,472

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607,988 : 3,989,472 = 3,989,472 : x
2. Step 2: Convert to fraction form
   2,607,988/3,989,472 = 3,989,472/x
3. Step 3: Cross multiply
   2,607,988x = 3,989,472 × 3,989,472
4. Step 4: Simplify right side
   2,607,988x = 15,915,886,838,784
5. Step 5: Solve for x
   x = 15,915,886,838,784/2,607,988
6. Step 6: Final answer
   x = 6,102,745.43