Finding the Third Proportional to 12,150 and 18,360

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150 : 18,360 = 18,360 : x
2. Step 2: Convert to fraction form
   12,150/18,360 = 18,360/x
3. Step 3: Cross multiply
   12,150x = 18,360 × 18,360
4. Step 4: Simplify right side
   12,150x = 337,089,600
5. Step 5: Solve for x
   x = 337,089,600/12,150
6. Step 6: Final answer
   x = 27,744