Finding the Third Proportional to 11,133.28 and 14,871.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,133.28 : 14,871.09 = 14,871.09 : x
2. Step 2: Convert to fraction form
   11,133.28/14,871.09 = 14,871.09/x
3. Step 3: Cross multiply
   11,133.28x = 14,871.09 × 14,871.09
4. Step 4: Simplify right side
   11,133.28x = 221,149,429.32
5. Step 5: Solve for x
   x = 221,149,429.32/11,133.28
6. Step 6: Final answer
   x = 19,863.81