Finding the Third Proportional to 21,591 and 28,698

Step by Step Solution

1. Step 1: Write the proportion equation
   21,591 : 28,698 = 28,698 : x
2. Step 2: Convert to fraction form
   21,591/28,698 = 28,698/x
3. Step 3: Cross multiply
   21,591x = 28,698 × 28,698
4. Step 4: Simplify right side
   21,591x = 823,575,204
5. Step 5: Solve for x
   x = 823,575,204/21,591
6. Step 6: Final answer
   x = 38,144.38