Finding the Third Proportional to 8,663.25 and 13,073.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,663.25 : 13,073.25 = 13,073.25 : x
2. Step 2: Convert to fraction form
   8,663.25/13,073.25 = 13,073.25/x
3. Step 3: Cross multiply
   8,663.25x = 13,073.25 × 13,073.25
4. Step 4: Simplify right side
   8,663.25x = 170,909,865.56
5. Step 5: Solve for x
   x = 170,909,865.56/8,663.25
6. Step 6: Final answer
   x = 19,728.15