Finding the Third Proportional to 90,276 and 195,618

Step by Step Solution

1. Step 1: Write the proportion equation
   90,276 : 195,618 = 195,618 : x
2. Step 2: Convert to fraction form
   90,276/195,618 = 195,618/x
3. Step 3: Cross multiply
   90,276x = 195,618 × 195,618
4. Step 4: Simplify right side
   90,276x = 38,266,401,924
5. Step 5: Solve for x
   x = 38,266,401,924/90,276
6. Step 6: Final answer
   x = 423,882.34