Finding the Third Proportional to 51,130 and 111,260

Step by Step Solution

1. Step 1: Write the proportion equation
   51,130 : 111,260 = 111,260 : x
2. Step 2: Convert to fraction form
   51,130/111,260 = 111,260/x
3. Step 3: Cross multiply
   51,130x = 111,260 × 111,260
4. Step 4: Simplify right side
   51,130x = 12,378,787,600
5. Step 5: Solve for x
   x = 12,378,787,600/51,130
6. Step 6: Final answer
   x = 242,104.20