Finding the Third Proportional to 8,662,128 and 12,109,824

Step by Step Solution

1. Step 1: Write the proportion equation
   8,662,128 : 12,109,824 = 12,109,824 : x
2. Step 2: Convert to fraction form
   8,662,128/12,109,824 = 12,109,824/x
3. Step 3: Cross multiply
   8,662,128x = 12,109,824 × 12,109,824
4. Step 4: Simplify right side
   8,662,128x = 146,647,837,310,976
5. Step 5: Solve for x
   x = 146,647,837,310,976/8,662,128
6. Step 6: Final answer
   x = 16,929,770.30