Finding the Third Proportional to 5,017.57 and 7,512.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,017.57 : 7,512.12 = 7,512.12 : x
2. Step 2: Convert to fraction form
   5,017.57/7,512.12 = 7,512.12/x
3. Step 3: Cross multiply
   5,017.57x = 7,512.12 × 7,512.12
4. Step 4: Simplify right side
   5,017.57x = 56,431,904.64
5. Step 5: Solve for x
   x = 56,431,904.64/5,017.57
6. Step 6: Final answer
   x = 11,246.86