Finding the Third Proportional to 7,836,159 and 12,108,855

Step by Step Solution

1. Step 1: Write the proportion equation
   7,836,159 : 12,108,855 = 12,108,855 : x
2. Step 2: Convert to fraction form
   7,836,159/12,108,855 = 12,108,855/x
3. Step 3: Cross multiply
   7,836,159x = 12,108,855 × 12,108,855
4. Step 4: Simplify right side
   7,836,159x = 146,624,369,411,025
5. Step 5: Solve for x
   x = 146,624,369,411,025/7,836,159
6. Step 6: Final answer
   x = 18,711,255.02