Finding the Third Proportional to 21,067 and 28,865

Step by Step Solution

1. Step 1: Write the proportion equation
   21,067 : 28,865 = 28,865 : x
2. Step 2: Convert to fraction form
   21,067/28,865 = 28,865/x
3. Step 3: Cross multiply
   21,067x = 28,865 × 28,865
4. Step 4: Simplify right side
   21,067x = 833,188,225
5. Step 5: Solve for x
   x = 833,188,225/21,067
6. Step 6: Final answer
   x = 39,549.45