Finding the Third Proportional to 25,800 and 28,488

Step by Step Solution

1. Step 1: Write the proportion equation
   25,800 : 28,488 = 28,488 : x
2. Step 2: Convert to fraction form
   25,800/28,488 = 28,488/x
3. Step 3: Cross multiply
   25,800x = 28,488 × 28,488
4. Step 4: Simplify right side
   25,800x = 811,566,144
5. Step 5: Solve for x
   x = 811,566,144/25,800
6. Step 6: Final answer
   x = 31,456.05