Finding the Third Proportional to 8,316 and 12,265.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,316 : 12,265.50 = 12,265.50 : x
2. Step 2: Convert to fraction form
   8,316/12,265.50 = 12,265.50/x
3. Step 3: Cross multiply
   8,316x = 12,265.50 × 12,265.50
4. Step 4: Simplify right side
   8,316x = 150,442,490.25
5. Step 5: Solve for x
   x = 150,442,490.25/8,316
6. Step 6: Final answer
   x = 18,090.73