Finding the Third Proportional to 142,857 and 301,618

Step by Step Solution

1. Step 1: Write the proportion equation
   142,857 : 301,618 = 301,618 : x
2. Step 2: Convert to fraction form
   142,857/301,618 = 301,618/x
3. Step 3: Cross multiply
   142,857x = 301,618 × 301,618
4. Step 4: Simplify right side
   142,857x = 90,973,417,924
5. Step 5: Solve for x
   x = 90,973,417,924/142,857
6. Step 6: Final answer
   x = 636,814.56