Finding the Third Proportional to 21,512.25 and 28,559.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,512.25 : 28,559.25 = 28,559.25 : x
2. Step 2: Convert to fraction form
   21,512.25/28,559.25 = 28,559.25/x
3. Step 3: Cross multiply
   21,512.25x = 28,559.25 × 28,559.25
4. Step 4: Simplify right side
   21,512.25x = 815,630,760.56
5. Step 5: Solve for x
   x = 815,630,760.56/21,512.25
6. Step 6: Final answer
   x = 37,914.71