Finding the Third Proportional to 8,491,136 and 17,940,672

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491,136 : 17,940,672 = 17,940,672 : x
2. Step 2: Convert to fraction form
   8,491,136/17,940,672 = 17,940,672/x
3. Step 3: Cross multiply
   8,491,136x = 17,940,672 × 17,940,672
4. Step 4: Simplify right side
   8,491,136x = 321,867,711,811,584
5. Step 5: Solve for x
   x = 321,867,711,811,584/8,491,136
6. Step 6: Final answer
   x = 37,906,319.23