Finding the Third Proportional to 13,216.50 and 18,123

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.50 : 18,123 = 18,123 : x
2. Step 2: Convert to fraction form
   13,216.50/18,123 = 18,123/x
3. Step 3: Cross multiply
   13,216.50x = 18,123 × 18,123
4. Step 4: Simplify right side
   13,216.50x = 328,443,129
5. Step 5: Solve for x
   x = 328,443,129/13,216.50
6. Step 6: Final answer
   x = 24,850.99