Finding the Third Proportional to 55,388 and 120,040

Step by Step Solution

1. Step 1: Write the proportion equation
   55,388 : 120,040 = 120,040 : x
2. Step 2: Convert to fraction form
   55,388/120,040 = 120,040/x
3. Step 3: Cross multiply
   55,388x = 120,040 × 120,040
4. Step 4: Simplify right side
   55,388x = 14,409,601,600
5. Step 5: Solve for x
   x = 14,409,601,600/55,388
6. Step 6: Final answer
   x = 260,157.46