Finding the Third Proportional to 2,989,634 and 7,018,641

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989,634 : 7,018,641 = 7,018,641 : x
2. Step 2: Convert to fraction form
   2,989,634/7,018,641 = 7,018,641/x
3. Step 3: Cross multiply
   2,989,634x = 7,018,641 × 7,018,641
4. Step 4: Simplify right side
   2,989,634x = 49,261,321,486,881
5. Step 5: Solve for x
   x = 49,261,321,486,881/2,989,634
6. Step 6: Final answer
   x = 16,477,375.32