Finding the Third Proportional to 222,946 and 485,256

Step by Step Solution

1. Step 1: Write the proportion equation
   222,946 : 485,256 = 485,256 : x
2. Step 2: Convert to fraction form
   222,946/485,256 = 485,256/x
3. Step 3: Cross multiply
   222,946x = 485,256 × 485,256
4. Step 4: Simplify right side
   222,946x = 235,473,385,536
5. Step 5: Solve for x
   x = 235,473,385,536/222,946
6. Step 6: Final answer
   x = 1,056,190.22