Finding the Third Proportional to 4,403,420 and 9,108,905

Step by Step Solution

1. Step 1: Write the proportion equation
   4,403,420 : 9,108,905 = 9,108,905 : x
2. Step 2: Convert to fraction form
   4,403,420/9,108,905 = 9,108,905/x
3. Step 3: Cross multiply
   4,403,420x = 9,108,905 × 9,108,905
4. Step 4: Simplify right side
   4,403,420x = 82,972,150,299,025
5. Step 5: Solve for x
   x = 82,972,150,299,025/4,403,420
6. Step 6: Final answer
   x = 18,842,661.00