Finding the Third Proportional to 4,424,910 and 9,628,530

Step by Step Solution

1. Step 1: Write the proportion equation
   4,424,910 : 9,628,530 = 9,628,530 : x
2. Step 2: Convert to fraction form
   4,424,910/9,628,530 = 9,628,530/x
3. Step 3: Cross multiply
   4,424,910x = 9,628,530 × 9,628,530
4. Step 4: Simplify right side
   4,424,910x = 92,708,589,960,900
5. Step 5: Solve for x
   x = 92,708,589,960,900/4,424,910
6. Step 6: Final answer
   x = 20,951,519.91