Finding the Third Proportional to 192,618 and 299,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,618 : 299,419.50 = 299,419.50 : x
2. Step 2: Convert to fraction form
   192,618/299,419.50 = 299,419.50/x
3. Step 3: Cross multiply
   192,618x = 299,419.50 × 299,419.50
4. Step 4: Simplify right side
   192,618x = 89,652,036,980.25
5. Step 5: Solve for x
   x = 89,652,036,980.25/192,618
6. Step 6: Final answer
   x = 465,439.56