Finding the Third Proportional to 11,658.94 and 13,663.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,658.94 : 13,663.69 = 13,663.69 : x
2. Step 2: Convert to fraction form
   11,658.94/13,663.69 = 13,663.69/x
3. Step 3: Cross multiply
   11,658.94x = 13,663.69 × 13,663.69
4. Step 4: Simplify right side
   11,658.94x = 186,696,356.10
5. Step 5: Solve for x
   x = 186,696,356.10/11,658.94
6. Step 6: Final answer
   x = 16,013.15