Finding the Third Proportional to 121,002 and 262,710

Step by Step Solution

1. Step 1: Write the proportion equation
   121,002 : 262,710 = 262,710 : x
2. Step 2: Convert to fraction form
   121,002/262,710 = 262,710/x
3. Step 3: Cross multiply
   121,002x = 262,710 × 262,710
4. Step 4: Simplify right side
   121,002x = 69,016,544,100
5. Step 5: Solve for x
   x = 69,016,544,100/121,002
6. Step 6: Final answer
   x = 570,375.23