Finding the Third Proportional to 3,418.50 and 7,180

Step by Step Solution

1. Step 1: Write the proportion equation
   3,418.50 : 7,180 = 7,180 : x
2. Step 2: Convert to fraction form
   3,418.50/7,180 = 7,180/x
3. Step 3: Cross multiply
   3,418.50x = 7,180 × 7,180
4. Step 4: Simplify right side
   3,418.50x = 51,552,400
5. Step 5: Solve for x
   x = 51,552,400/3,418.50
6. Step 6: Final answer
   x = 15,080.42