Finding the Third Proportional to 12,748 and 25,860

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748 : 25,860 = 25,860 : x
2. Step 2: Convert to fraction form
   12,748/25,860 = 25,860/x
3. Step 3: Cross multiply
   12,748x = 25,860 × 25,860
4. Step 4: Simplify right side
   12,748x = 668,739,600
5. Step 5: Solve for x
   x = 668,739,600/12,748
6. Step 6: Final answer
   x = 52,458.39