Finding the Third Proportional to 8,607.50 and 12,751

Step by Step Solution

1. Step 1: Write the proportion equation
   8,607.50 : 12,751 = 12,751 : x
2. Step 2: Convert to fraction form
   8,607.50/12,751 = 12,751/x
3. Step 3: Cross multiply
   8,607.50x = 12,751 × 12,751
4. Step 4: Simplify right side
   8,607.50x = 162,588,001
5. Step 5: Solve for x
   x = 162,588,001/8,607.50
6. Step 6: Final answer
   x = 18,889.11