Finding the Third Proportional to 8,413.88 and 13,000.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,413.88 : 13,000.50 = 13,000.50 : x
2. Step 2: Convert to fraction form
   8,413.88/13,000.50 = 13,000.50/x
3. Step 3: Cross multiply
   8,413.88x = 13,000.50 × 13,000.50
4. Step 4: Simplify right side
   8,413.88x = 169,013,000.25
5. Step 5: Solve for x
   x = 169,013,000.25/8,413.88
6. Step 6: Final answer
   x = 20,087.42