Finding the Third Proportional to 12,135.50 and 18,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,135.50 : 18,314.50 = 18,314.50 : x
2. Step 2: Convert to fraction form
   12,135.50/18,314.50 = 18,314.50/x
3. Step 3: Cross multiply
   12,135.50x = 18,314.50 × 18,314.50
4. Step 4: Simplify right side
   12,135.50x = 335,420,910.25
5. Step 5: Solve for x
   x = 335,420,910.25/12,135.50
6. Step 6: Final answer
   x = 27,639.64