Finding the Third Proportional to 25,221 and 55,107

Step by Step Solution

1. Step 1: Write the proportion equation
   25,221 : 55,107 = 55,107 : x
2. Step 2: Convert to fraction form
   25,221/55,107 = 55,107/x
3. Step 3: Cross multiply
   25,221x = 55,107 × 55,107
4. Step 4: Simplify right side
   25,221x = 3,036,781,449
5. Step 5: Solve for x
   x = 3,036,781,449/25,221
6. Step 6: Final answer
   x = 120,406.86