Finding the Third Proportional to 55,356 and 120,020

Step by Step Solution

1. Step 1: Write the proportion equation
   55,356 : 120,020 = 120,020 : x
2. Step 2: Convert to fraction form
   55,356/120,020 = 120,020/x
3. Step 3: Cross multiply
   55,356x = 120,020 × 120,020
4. Step 4: Simplify right side
   55,356x = 14,404,800,400
5. Step 5: Solve for x
   x = 14,404,800,400/55,356
6. Step 6: Final answer
   x = 260,221.12