Finding the Third Proportional to 101,622 and 222,618

Step by Step Solution

1. Step 1: Write the proportion equation
   101,622 : 222,618 = 222,618 : x
2. Step 2: Convert to fraction form
   101,622/222,618 = 222,618/x
3. Step 3: Cross multiply
   101,622x = 222,618 × 222,618
4. Step 4: Simplify right side
   101,622x = 49,558,773,924
5. Step 5: Solve for x
   x = 49,558,773,924/101,622
6. Step 6: Final answer
   x = 487,677.61