Finding the Third Proportional to 8,317.50 and 12,166

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.50 : 12,166 = 12,166 : x
2. Step 2: Convert to fraction form
   8,317.50/12,166 = 12,166/x
3. Step 3: Cross multiply
   8,317.50x = 12,166 × 12,166
4. Step 4: Simplify right side
   8,317.50x = 148,011,556
5. Step 5: Solve for x
   x = 148,011,556/8,317.50
6. Step 6: Final answer
   x = 17,795.20