Finding the Third Proportional to 11,538 and 14,743.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,538 : 14,743.50 = 14,743.50 : x
2. Step 2: Convert to fraction form
   11,538/14,743.50 = 14,743.50/x
3. Step 3: Cross multiply
   11,538x = 14,743.50 × 14,743.50
4. Step 4: Simplify right side
   11,538x = 217,370,792.25
5. Step 5: Solve for x
   x = 217,370,792.25/11,538
6. Step 6: Final answer
   x = 18,839.56