Finding the Third Proportional to 16,984.69 and 25,456.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,984.69 : 25,456.78 = 25,456.78 : x
2. Step 2: Convert to fraction form
   16,984.69/25,456.78 = 25,456.78/x
3. Step 3: Cross multiply
   16,984.69x = 25,456.78 × 25,456.78
4. Step 4: Simplify right side
   16,984.69x = 648,047,711.61
5. Step 5: Solve for x
   x = 648,047,711.61/16,984.69
6. Step 6: Final answer
   x = 38,154.82