Finding the Third Proportional to 27,687,072 and 42,981,724

Step by Step Solution

1. Step 1: Write the proportion equation
   27,687,072 : 42,981,724 = 42,981,724 : x
2. Step 2: Convert to fraction form
   27,687,072/42,981,724 = 42,981,724/x
3. Step 3: Cross multiply
   27,687,072x = 42,981,724 × 42,981,724
4. Step 4: Simplify right side
   27,687,072x = 1,847,428,598,012,176
5. Step 5: Solve for x
   x = 1,847,428,598,012,176/27,687,072
6. Step 6: Final answer
   x = 66,725,314.91