Finding the Third Proportional to 13,215.38 and 18,122.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,215.38 : 18,122.06 = 18,122.06 : x
2. Step 2: Convert to fraction form
   13,215.38/18,122.06 = 18,122.06/x
3. Step 3: Cross multiply
   13,215.38x = 18,122.06 × 18,122.06
4. Step 4: Simplify right side
   13,215.38x = 328,409,149.25
5. Step 5: Solve for x
   x = 328,409,149.25/13,215.38
6. Step 6: Final answer
   x = 24,850.54