Finding the Third Proportional to 325,215 and 500,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   325,215 : 500,494.50 = 500,494.50 : x
2. Step 2: Convert to fraction form
   325,215/500,494.50 = 500,494.50/x
3. Step 3: Cross multiply
   325,215x = 500,494.50 × 500,494.50
4. Step 4: Simplify right side
   325,215x = 250,494,744,530.25
5. Step 5: Solve for x
   x = 250,494,744,530.25/325,215
6. Step 6: Final answer
   x = 770,243.51