Finding the Third Proportional to 7,157,689 and 10,840,780

Step by Step Solution

1. Step 1: Write the proportion equation
   7,157,689 : 10,840,780 = 10,840,780 : x
2. Step 2: Convert to fraction form
   7,157,689/10,840,780 = 10,840,780/x
3. Step 3: Cross multiply
   7,157,689x = 10,840,780 × 10,840,780
4. Step 4: Simplify right side
   7,157,689x = 117,522,511,008,400
5. Step 5: Solve for x
   x = 117,522,511,008,400/7,157,689
6. Step 6: Final answer
   x = 16,419,058.02