Finding the Third Proportional to 7,448.50 and 11,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,448.50 : 11,581.50 = 11,581.50 : x
2. Step 2: Convert to fraction form
   7,448.50/11,581.50 = 11,581.50/x
3. Step 3: Cross multiply
   7,448.50x = 11,581.50 × 11,581.50
4. Step 4: Simplify right side
   7,448.50x = 134,131,142.25
5. Step 5: Solve for x
   x = 134,131,142.25/7,448.50
6. Step 6: Final answer
   x = 18,007.81