Finding the Third Proportional to 13,551 and 21,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,551 : 21,238.50 = 21,238.50 : x
2. Step 2: Convert to fraction form
   13,551/21,238.50 = 21,238.50/x
3. Step 3: Cross multiply
   13,551x = 21,238.50 × 21,238.50
4. Step 4: Simplify right side
   13,551x = 451,073,882.25
5. Step 5: Solve for x
   x = 451,073,882.25/13,551
6. Step 6: Final answer
   x = 33,287.13