Finding the Third Proportional to 21,528 and 27,180

Step by Step Solution

1. Step 1: Write the proportion equation
   21,528 : 27,180 = 27,180 : x
2. Step 2: Convert to fraction form
   21,528/27,180 = 27,180/x
3. Step 3: Cross multiply
   21,528x = 27,180 × 27,180
4. Step 4: Simplify right side
   21,528x = 738,752,400
5. Step 5: Solve for x
   x = 738,752,400/21,528
6. Step 6: Final answer
   x = 34,315.89