Finding the Third Proportional to 25,716 and 55,860

Step by Step Solution

1. Step 1: Write the proportion equation
   25,716 : 55,860 = 55,860 : x
2. Step 2: Convert to fraction form
   25,716/55,860 = 55,860/x
3. Step 3: Cross multiply
   25,716x = 55,860 × 55,860
4. Step 4: Simplify right side
   25,716x = 3,120,339,600
5. Step 5: Solve for x
   x = 3,120,339,600/25,716
6. Step 6: Final answer
   x = 121,338.45