Finding the Third Proportional to 121,008 and 263,012

Step by Step Solution

1. Step 1: Write the proportion equation
   121,008 : 263,012 = 263,012 : x
2. Step 2: Convert to fraction form
   121,008/263,012 = 263,012/x
3. Step 3: Cross multiply
   121,008x = 263,012 × 263,012
4. Step 4: Simplify right side
   121,008x = 69,175,312,144
5. Step 5: Solve for x
   x = 69,175,312,144/121,008
6. Step 6: Final answer
   x = 571,659.00