Finding the Third Proportional to 8,293,142 and 12,981,145

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293,142 : 12,981,145 = 12,981,145 : x
2. Step 2: Convert to fraction form
   8,293,142/12,981,145 = 12,981,145/x
3. Step 3: Cross multiply
   8,293,142x = 12,981,145 × 12,981,145
4. Step 4: Simplify right side
   8,293,142x = 168,510,125,511,025
5. Step 5: Solve for x
   x = 168,510,125,511,025/8,293,142
6. Step 6: Final answer
   x = 20,319,213.82