Finding the Third Proportional to 13,217 and 18,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,217 : 18,002.50 = 18,002.50 : x
2. Step 2: Convert to fraction form
   13,217/18,002.50 = 18,002.50/x
3. Step 3: Cross multiply
   13,217x = 18,002.50 × 18,002.50
4. Step 4: Simplify right side
   13,217x = 324,090,006.25
5. Step 5: Solve for x
   x = 324,090,006.25/13,217
6. Step 6: Final answer
   x = 24,520.69