Finding the Third Proportional to 20,009 and 28,068

Step by Step Solution

1. Step 1: Write the proportion equation
   20,009 : 28,068 = 28,068 : x
2. Step 2: Convert to fraction form
   20,009/28,068 = 28,068/x
3. Step 3: Cross multiply
   20,009x = 28,068 × 28,068
4. Step 4: Simplify right side
   20,009x = 787,812,624
5. Step 5: Solve for x
   x = 787,812,624/20,009
6. Step 6: Final answer
   x = 39,372.91