Finding the Third Proportional to 8,293,140 and 12,981,142

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293,140 : 12,981,142 = 12,981,142 : x
2. Step 2: Convert to fraction form
   8,293,140/12,981,142 = 12,981,142/x
3. Step 3: Cross multiply
   8,293,140x = 12,981,142 × 12,981,142
4. Step 4: Simplify right side
   8,293,140x = 168,510,047,624,164
5. Step 5: Solve for x
   x = 168,510,047,624,164/8,293,140
6. Step 6: Final answer
   x = 20,319,209.33