Finding the Third Proportional to 8,325.50 and 12,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,325.50 : 12,456.50 = 12,456.50 : x
2. Step 2: Convert to fraction form
   8,325.50/12,456.50 = 12,456.50/x
3. Step 3: Cross multiply
   8,325.50x = 12,456.50 × 12,456.50
4. Step 4: Simplify right side
   8,325.50x = 155,164,392.25
5. Step 5: Solve for x
   x = 155,164,392.25/8,325.50
6. Step 6: Final answer
   x = 18,637.25