Finding the Third Proportional to 2,520.75 and 5,118

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.75 : 5,118 = 5,118 : x
2. Step 2: Convert to fraction form
   2,520.75/5,118 = 5,118/x
3. Step 3: Cross multiply
   2,520.75x = 5,118 × 5,118
4. Step 4: Simplify right side
   2,520.75x = 26,193,924
5. Step 5: Solve for x
   x = 26,193,924/2,520.75
6. Step 6: Final answer
   x = 10,391.32