Finding the Third Proportional to 25,408.69 and 40,846.78

Step by Step Solution

1. Step 1: Write the proportion equation
   25,408.69 : 40,846.78 = 40,846.78 : x
2. Step 2: Convert to fraction form
   25,408.69/40,846.78 = 40,846.78/x
3. Step 3: Cross multiply
   25,408.69x = 40,846.78 × 40,846.78
4. Step 4: Simplify right side
   25,408.69x = 1,668,459,538.49
5. Step 5: Solve for x
   x = 1,668,459,538.49/25,408.69
6. Step 6: Final answer
   x = 65,664.92