Finding the Third Proportional to 12,370.50 and 18,321.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,370.50 : 18,321.75 = 18,321.75 : x
2. Step 2: Convert to fraction form
   12,370.50/18,321.75 = 18,321.75/x
3. Step 3: Cross multiply
   12,370.50x = 18,321.75 × 18,321.75
4. Step 4: Simplify right side
   12,370.50x = 335,686,523.06
5. Step 5: Solve for x
   x = 335,686,523.06/12,370.50
6. Step 6: Final answer
   x = 27,136.05