Finding the Third Proportional to 3,742.88 and 5,479.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,742.88 : 5,479.31 = 5,479.31 : x
2. Step 2: Convert to fraction form
   3,742.88/5,479.31 = 5,479.31/x
3. Step 3: Cross multiply
   3,742.88x = 5,479.31 × 5,479.31
4. Step 4: Simplify right side
   3,742.88x = 30,022,865.47
5. Step 5: Solve for x
   x = 30,022,865.47/3,742.88
6. Step 6: Final answer
   x = 8,021.34