Finding the Third Proportional to 25,718 and 56,242

Step by Step Solution

1. Step 1: Write the proportion equation
   25,718 : 56,242 = 56,242 : x
2. Step 2: Convert to fraction form
   25,718/56,242 = 56,242/x
3. Step 3: Cross multiply
   25,718x = 56,242 × 56,242
4. Step 4: Simplify right side
   25,718x = 3,163,162,564
5. Step 5: Solve for x
   x = 3,163,162,564/25,718
6. Step 6: Final answer
   x = 122,994.11