Finding the Third Proportional to 121,048 and 262,760

Step by Step Solution

1. Step 1: Write the proportion equation
   121,048 : 262,760 = 262,760 : x
2. Step 2: Convert to fraction form
   121,048/262,760 = 262,760/x
3. Step 3: Cross multiply
   121,048x = 262,760 × 262,760
4. Step 4: Simplify right side
   121,048x = 69,042,817,600
5. Step 5: Solve for x
   x = 69,042,817,600/121,048
6. Step 6: Final answer
   x = 570,375.53