Finding the Third Proportional to 2,519.81 and 5,339.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.81 : 5,339.91 = 5,339.91 : x
2. Step 2: Convert to fraction form
   2,519.81/5,339.91 = 5,339.91/x
3. Step 3: Cross multiply
   2,519.81x = 5,339.91 × 5,339.91
4. Step 4: Simplify right side
   2,519.81x = 28,514,598.76
5. Step 5: Solve for x
   x = 28,514,598.76/2,519.81
6. Step 6: Final answer
   x = 11,316.16