Finding the Third Proportional to 11,905 and 25,858

Step by Step Solution

1. Step 1: Write the proportion equation
   11,905 : 25,858 = 25,858 : x
2. Step 2: Convert to fraction form
   11,905/25,858 = 25,858/x
3. Step 3: Cross multiply
   11,905x = 25,858 × 25,858
4. Step 4: Simplify right side
   11,905x = 668,636,164
5. Step 5: Solve for x
   x = 668,636,164/11,905
6. Step 6: Final answer
   x = 56,164.31