Finding the Third Proportional to 221,464 and 484,144

Step by Step Solution

1. Step 1: Write the proportion equation
   221,464 : 484,144 = 484,144 : x
2. Step 2: Convert to fraction form
   221,464/484,144 = 484,144/x
3. Step 3: Cross multiply
   221,464x = 484,144 × 484,144
4. Step 4: Simplify right side
   221,464x = 234,395,412,736
5. Step 5: Solve for x
   x = 234,395,412,736/221,464
6. Step 6: Final answer
   x = 1,058,390.59