Finding the Third Proportional to 76,932 and 173,618

Step by Step Solution

1. Step 1: Write the proportion equation
   76,932 : 173,618 = 173,618 : x
2. Step 2: Convert to fraction form
   76,932/173,618 = 173,618/x
3. Step 3: Cross multiply
   76,932x = 173,618 × 173,618
4. Step 4: Simplify right side
   76,932x = 30,143,209,924
5. Step 5: Solve for x
   x = 30,143,209,924/76,932
6. Step 6: Final answer
   x = 391,816.28