Finding the Third Proportional to 12,492 and 27,240

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492 : 27,240 = 27,240 : x
2. Step 2: Convert to fraction form
   12,492/27,240 = 27,240/x
3. Step 3: Cross multiply
   12,492x = 27,240 × 27,240
4. Step 4: Simplify right side
   12,492x = 742,017,600
5. Step 5: Solve for x
   x = 742,017,600/12,492
6. Step 6: Final answer
   x = 59,399.42