Finding the Third Proportional to 8,673 and 12,393.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,673 : 12,393.50 = 12,393.50 : x
2. Step 2: Convert to fraction form
   8,673/12,393.50 = 12,393.50/x
3. Step 3: Cross multiply
   8,673x = 12,393.50 × 12,393.50
4. Step 4: Simplify right side
   8,673x = 153,598,842.25
5. Step 5: Solve for x
   x = 153,598,842.25/8,673
6. Step 6: Final answer
   x = 17,710.00