Finding the Third Proportional to 8,662,116 and 12,109,809

Step by Step Solution

1. Step 1: Write the proportion equation
   8,662,116 : 12,109,809 = 12,109,809 : x
2. Step 2: Convert to fraction form
   8,662,116/12,109,809 = 12,109,809/x
3. Step 3: Cross multiply
   8,662,116x = 12,109,809 × 12,109,809
4. Step 4: Simplify right side
   8,662,116x = 146,647,474,016,481
5. Step 5: Solve for x
   x = 146,647,474,016,481/8,662,116
6. Step 6: Final answer
   x = 16,929,751.81