Finding the Third Proportional to 59,104 and 128,040

Step by Step Solution

1. Step 1: Write the proportion equation
   59,104 : 128,040 = 128,040 : x
2. Step 2: Convert to fraction form
   59,104/128,040 = 128,040/x
3. Step 3: Cross multiply
   59,104x = 128,040 × 128,040
4. Step 4: Simplify right side
   59,104x = 16,394,241,600
5. Step 5: Solve for x
   x = 16,394,241,600/59,104
6. Step 6: Final answer
   x = 277,379.56