Finding the Third Proportional to 8,139,105 and 12,596,918

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139,105 : 12,596,918 = 12,596,918 : x
2. Step 2: Convert to fraction form
   8,139,105/12,596,918 = 12,596,918/x
3. Step 3: Cross multiply
   8,139,105x = 12,596,918 × 12,596,918
4. Step 4: Simplify right side
   8,139,105x = 158,682,343,098,724
5. Step 5: Solve for x
   x = 158,682,343,098,724/8,139,105
6. Step 6: Final answer
   x = 19,496,288.98