Finding the Third Proportional to 8,293,149 and 12,981,156

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293,149 : 12,981,156 = 12,981,156 : x
2. Step 2: Convert to fraction form
   8,293,149/12,981,156 = 12,981,156/x
3. Step 3: Cross multiply
   8,293,149x = 12,981,156 × 12,981,156
4. Step 4: Simplify right side
   8,293,149x = 168,510,411,096,336
5. Step 5: Solve for x
   x = 168,510,411,096,336/8,293,149
6. Step 6: Final answer
   x = 20,319,231.10