Finding the Third Proportional to 11,300 and 15,180

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300 : 15,180 = 15,180 : x
2. Step 2: Convert to fraction form
   11,300/15,180 = 15,180/x
3. Step 3: Cross multiply
   11,300x = 15,180 × 15,180
4. Step 4: Simplify right side
   11,300x = 230,432,400
5. Step 5: Solve for x
   x = 230,432,400/11,300
6. Step 6: Final answer
   x = 20,392.25