Finding the Third Proportional to 65,426 and 133,618

Step by Step Solution

1. Step 1: Write the proportion equation
   65,426 : 133,618 = 133,618 : x
2. Step 2: Convert to fraction form
   65,426/133,618 = 133,618/x
3. Step 3: Cross multiply
   65,426x = 133,618 × 133,618
4. Step 4: Simplify right side
   65,426x = 17,853,769,924
5. Step 5: Solve for x
   x = 17,853,769,924/65,426
6. Step 6: Final answer
   x = 272,884.94