Finding the Third Proportional to 9,989,816 and 14,944,648

Step by Step Solution

1. Step 1: Write the proportion equation
   9,989,816 : 14,944,648 = 14,944,648 : x
2. Step 2: Convert to fraction form
   9,989,816/14,944,648 = 14,944,648/x
3. Step 3: Cross multiply
   9,989,816x = 14,944,648 × 14,944,648
4. Step 4: Simplify right side
   9,989,816x = 223,342,503,843,904
5. Step 5: Solve for x
   x = 223,342,503,843,904/9,989,816
6. Step 6: Final answer
   x = 22,357,018.77