Finding the Third Proportional to 8,275.50 and 12,386.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,275.50 : 12,386.25 = 12,386.25 : x
2. Step 2: Convert to fraction form
   8,275.50/12,386.25 = 12,386.25/x
3. Step 3: Cross multiply
   8,275.50x = 12,386.25 × 12,386.25
4. Step 4: Simplify right side
   8,275.50x = 153,419,189.06
5. Step 5: Solve for x
   x = 153,419,189.06/8,275.50
6. Step 6: Final answer
   x = 18,538.96