Finding the Third Proportional to 12,458 and 17,738

Step by Step Solution

1. Step 1: Write the proportion equation
   12,458 : 17,738 = 17,738 : x
2. Step 2: Convert to fraction form
   12,458/17,738 = 17,738/x
3. Step 3: Cross multiply
   12,458x = 17,738 × 17,738
4. Step 4: Simplify right side
   12,458x = 314,636,644
5. Step 5: Solve for x
   x = 314,636,644/12,458
6. Step 6: Final answer
   x = 25,255.79