Finding the Third Proportional to 25,839 and 39,960

Step by Step Solution

1. Step 1: Write the proportion equation
   25,839 : 39,960 = 39,960 : x
2. Step 2: Convert to fraction form
   25,839/39,960 = 39,960/x
3. Step 3: Cross multiply
   25,839x = 39,960 × 39,960
4. Step 4: Simplify right side
   25,839x = 1,596,801,600
5. Step 5: Solve for x
   x = 1,596,801,600/25,839
6. Step 6: Final answer
   x = 61,798.12