Finding the Third Proportional to 5,104 and 10,360

Step by Step Solution

1. Step 1: Write the proportion equation
   5,104 : 10,360 = 10,360 : x
2. Step 2: Convert to fraction form
   5,104/10,360 = 10,360/x
3. Step 3: Cross multiply
   5,104x = 10,360 × 10,360
4. Step 4: Simplify right side
   5,104x = 107,329,600
5. Step 5: Solve for x
   x = 107,329,600/5,104
6. Step 6: Final answer
   x = 21,028.53