Finding the Third Proportional to 25,921 and 56,451.75

Step by Step Solution

1. Step 1: Write the proportion equation
   25,921 : 56,451.75 = 56,451.75 : x
2. Step 2: Convert to fraction form
   25,921/56,451.75 = 56,451.75/x
3. Step 3: Cross multiply
   25,921x = 56,451.75 × 56,451.75
4. Step 4: Simplify right side
   25,921x = 3,186,800,078.06
5. Step 5: Solve for x
   x = 3,186,800,078.06/25,921
6. Step 6: Final answer
   x = 122,942.79