Finding the Third Proportional to 7,836,165 and 12,108,864

Step by Step Solution

1. Step 1: Write the proportion equation
   7,836,165 : 12,108,864 = 12,108,864 : x
2. Step 2: Convert to fraction form
   7,836,165/12,108,864 = 12,108,864/x
3. Step 3: Cross multiply
   7,836,165x = 12,108,864 × 12,108,864
4. Step 4: Simplify right side
   7,836,165x = 146,624,587,370,496
5. Step 5: Solve for x
   x = 146,624,587,370,496/7,836,165
6. Step 6: Final answer
   x = 18,711,268.51