Finding the Third Proportional to 11,149.50 and 14,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,149.50 : 14,871.50 = 14,871.50 : x
2. Step 2: Convert to fraction form
   11,149.50/14,871.50 = 14,871.50/x
3. Step 3: Cross multiply
   11,149.50x = 14,871.50 × 14,871.50
4. Step 4: Simplify right side
   11,149.50x = 221,161,512.25
5. Step 5: Solve for x
   x = 221,161,512.25/11,149.50
6. Step 6: Final answer
   x = 19,836.00