Finding the Third Proportional to 9,960.47 and 13,534.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960.47 : 13,534.59 = 13,534.59 : x
2. Step 2: Convert to fraction form
   9,960.47/13,534.59 = 13,534.59/x
3. Step 3: Cross multiply
   9,960.47x = 13,534.59 × 13,534.59
4. Step 4: Simplify right side
   9,960.47x = 183,185,227.98
5. Step 5: Solve for x
   x = 183,185,227.98/9,960.47
6. Step 6: Final answer
   x = 18,391.23