Finding the Third Proportional to 25,421 and 55,749

Step by Step Solution

1. Step 1: Write the proportion equation
   25,421 : 55,749 = 55,749 : x
2. Step 2: Convert to fraction form
   25,421/55,749 = 55,749/x
3. Step 3: Cross multiply
   25,421x = 55,749 × 55,749
4. Step 4: Simplify right side
   25,421x = 3,107,951,001
5. Step 5: Solve for x
   x = 3,107,951,001/25,421
6. Step 6: Final answer
   x = 122,259.20