Finding the Third Proportional to 196,623 and 426,618

Step by Step Solution

1. Step 1: Write the proportion equation
   196,623 : 426,618 = 426,618 : x
2. Step 2: Convert to fraction form
   196,623/426,618 = 426,618/x
3. Step 3: Cross multiply
   196,623x = 426,618 × 426,618
4. Step 4: Simplify right side
   196,623x = 182,002,917,924
5. Step 5: Solve for x
   x = 182,002,917,924/196,623
6. Step 6: Final answer
   x = 925,644.09