Finding the Third Proportional to 12,021 and 25,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,021 : 25,891.50 = 25,891.50 : x
2. Step 2: Convert to fraction form
   12,021/25,891.50 = 25,891.50/x
3. Step 3: Cross multiply
   12,021x = 25,891.50 × 25,891.50
4. Step 4: Simplify right side
   12,021x = 670,369,772.25
5. Step 5: Solve for x
   x = 670,369,772.25/12,021
6. Step 6: Final answer
   x = 55,766.56