Finding the Third Proportional to 9,079 and 12,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,079 : 12,321.50 = 12,321.50 : x
2. Step 2: Convert to fraction form
   9,079/12,321.50 = 12,321.50/x
3. Step 3: Cross multiply
   9,079x = 12,321.50 × 12,321.50
4. Step 4: Simplify right side
   9,079x = 151,819,362.25
5. Step 5: Solve for x
   x = 151,819,362.25/9,079
6. Step 6: Final answer
   x = 16,722.04