Finding the Third Proportional to 20,260 and 28,144

Step by Step Solution

1. Step 1: Write the proportion equation
   20,260 : 28,144 = 28,144 : x
2. Step 2: Convert to fraction form
   20,260/28,144 = 28,144/x
3. Step 3: Cross multiply
   20,260x = 28,144 × 28,144
4. Step 4: Simplify right side
   20,260x = 792,084,736
5. Step 5: Solve for x
   x = 792,084,736/20,260
6. Step 6: Final answer
   x = 39,095.99