Finding the Third Proportional to 17,820 and 27,180

Step by Step Solution

1. Step 1: Write the proportion equation
   17,820 : 27,180 = 27,180 : x
2. Step 2: Convert to fraction form
   17,820/27,180 = 27,180/x
3. Step 3: Cross multiply
   17,820x = 27,180 × 27,180
4. Step 4: Simplify right side
   17,820x = 738,752,400
5. Step 5: Solve for x
   x = 738,752,400/17,820
6. Step 6: Final answer
   x = 41,456.36