Finding the Third Proportional to 5,275.13 and 10,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,275.13 : 10,401.75 = 10,401.75 : x
2. Step 2: Convert to fraction form
   5,275.13/10,401.75 = 10,401.75/x
3. Step 3: Cross multiply
   5,275.13x = 10,401.75 × 10,401.75
4. Step 4: Simplify right side
   5,275.13x = 108,196,403.06
5. Step 5: Solve for x
   x = 108,196,403.06/5,275.13
6. Step 6: Final answer
   x = 20,510.68