Finding the Third Proportional to 222,072 and 488,424

Step by Step Solution

1. Step 1: Write the proportion equation
   222,072 : 488,424 = 488,424 : x
2. Step 2: Convert to fraction form
   222,072/488,424 = 488,424/x
3. Step 3: Cross multiply
   222,072x = 488,424 × 488,424
4. Step 4: Simplify right side
   222,072x = 238,558,003,776
5. Step 5: Solve for x
   x = 238,558,003,776/222,072
6. Step 6: Final answer
   x = 1,074,237.20