Finding the Third Proportional to 20,009 and 41,908

Step by Step Solution

1. Step 1: Write the proportion equation
   20,009 : 41,908 = 41,908 : x
2. Step 2: Convert to fraction form
   20,009/41,908 = 41,908/x
3. Step 3: Cross multiply
   20,009x = 41,908 × 41,908
4. Step 4: Simplify right side
   20,009x = 1,756,280,464
5. Step 5: Solve for x
   x = 1,756,280,464/20,009
6. Step 6: Final answer
   x = 87,774.52