Finding the Third Proportional to 327,618 and 700,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   327,618 : 700,777.50 = 700,777.50 : x
2. Step 2: Convert to fraction form
   327,618/700,777.50 = 700,777.50/x
3. Step 3: Cross multiply
   327,618x = 700,777.50 × 700,777.50
4. Step 4: Simplify right side
   327,618x = 491,089,104,506.25
5. Step 5: Solve for x
   x = 491,089,104,506.25/327,618
6. Step 6: Final answer
   x = 1,498,968.63