Finding the Third Proportional to 9,127.69 and 13,399.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.69 : 13,399.17 = 13,399.17 : x
2. Step 2: Convert to fraction form
   9,127.69/13,399.17 = 13,399.17/x
3. Step 3: Cross multiply
   9,127.69x = 13,399.17 × 13,399.17
4. Step 4: Simplify right side
   9,127.69x = 179,537,806.94
5. Step 5: Solve for x
   x = 179,537,806.94/9,127.69
6. Step 6: Final answer
   x = 19,669.58