Finding the Third Proportional to 3,079.69 and 7,442.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,079.69 : 7,442.72 = 7,442.72 : x
2. Step 2: Convert to fraction form
   3,079.69/7,442.72 = 7,442.72/x
3. Step 3: Cross multiply
   3,079.69x = 7,442.72 × 7,442.72
4. Step 4: Simplify right side
   3,079.69x = 55,394,062.39
5. Step 5: Solve for x
   x = 55,394,062.39/3,079.69
6. Step 6: Final answer
   x = 17,986.91