Finding the Third Proportional to 5,488.88 and 8,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,488.88 : 8,514.56 = 8,514.56 : x
2. Step 2: Convert to fraction form
   5,488.88/8,514.56 = 8,514.56/x
3. Step 3: Cross multiply
   5,488.88x = 8,514.56 × 8,514.56
4. Step 4: Simplify right side
   5,488.88x = 72,497,774.57
5. Step 5: Solve for x
   x = 72,497,774.57/5,488.88
6. Step 6: Final answer
   x = 13,208.13