Finding the Third Proportional to 8,499 and 12,352.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499 : 12,352.50 = 12,352.50 : x
2. Step 2: Convert to fraction form
   8,499/12,352.50 = 12,352.50/x
3. Step 3: Cross multiply
   8,499x = 12,352.50 × 12,352.50
4. Step 4: Simplify right side
   8,499x = 152,584,256.25
5. Step 5: Solve for x
   x = 152,584,256.25/8,499
6. Step 6: Final answer
   x = 17,953.20