Finding the Third Proportional to 8,293,144 and 12,981,147

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293,144 : 12,981,147 = 12,981,147 : x
2. Step 2: Convert to fraction form
   8,293,144/12,981,147 = 12,981,147/x
3. Step 3: Cross multiply
   8,293,144x = 12,981,147 × 12,981,147
4. Step 4: Simplify right side
   8,293,144x = 168,510,177,435,609
5. Step 5: Solve for x
   x = 168,510,177,435,609/8,293,144
6. Step 6: Final answer
   x = 20,319,215.18