Finding the Third Proportional to 8,635 and 18,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,635 : 18,910.50 = 18,910.50 : x
2. Step 2: Convert to fraction form
   8,635/18,910.50 = 18,910.50/x
3. Step 3: Cross multiply
   8,635x = 18,910.50 × 18,910.50
4. Step 4: Simplify right side
   8,635x = 357,607,010.25
5. Step 5: Solve for x
   x = 357,607,010.25/8,635
6. Step 6: Final answer
   x = 41,413.67