Finding the Third Proportional to 10,243.13 and 13,663.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,243.13 : 13,663.69 = 13,663.69 : x
2. Step 2: Convert to fraction form
   10,243.13/13,663.69 = 13,663.69/x
3. Step 3: Cross multiply
   10,243.13x = 13,663.69 × 13,663.69
4. Step 4: Simplify right side
   10,243.13x = 186,696,356.10
5. Step 5: Solve for x
   x = 186,696,356.10/10,243.13
6. Step 6: Final answer
   x = 18,226.50