Finding the Third Proportional to 8,293,145 and 12,981,149

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293,145 : 12,981,149 = 12,981,149 : x
2. Step 2: Convert to fraction form
   8,293,145/12,981,149 = 12,981,149/x
3. Step 3: Cross multiply
   8,293,145x = 12,981,149 × 12,981,149
4. Step 4: Simplify right side
   8,293,145x = 168,510,229,360,201
5. Step 5: Solve for x
   x = 168,510,229,360,201/8,293,145
6. Step 6: Final answer
   x = 20,319,218.99