Finding the Third Proportional to 9,045.50 and 13,321.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,045.50 : 13,321.75 = 13,321.75 : x
2. Step 2: Convert to fraction form
   9,045.50/13,321.75 = 13,321.75/x
3. Step 3: Cross multiply
   9,045.50x = 13,321.75 × 13,321.75
4. Step 4: Simplify right side
   9,045.50x = 177,469,023.06
5. Step 5: Solve for x
   x = 177,469,023.06/9,045.50
6. Step 6: Final answer
   x = 19,619.59