Finding the Third Proportional to 222,020 and 484,640

Step by Step Solution

1. Step 1: Write the proportion equation
   222,020 : 484,640 = 484,640 : x
2. Step 2: Convert to fraction form
   222,020/484,640 = 484,640/x
3. Step 3: Cross multiply
   222,020x = 484,640 × 484,640
4. Step 4: Simplify right side
   222,020x = 234,875,929,600
5. Step 5: Solve for x
   x = 234,875,929,600/222,020
6. Step 6: Final answer
   x = 1,057,904.38