Finding the Third Proportional to 326,617.50 and 499,647

Step by Step Solution

1. Step 1: Write the proportion equation
   326,617.50 : 499,647 = 499,647 : x
2. Step 2: Convert to fraction form
   326,617.50/499,647 = 499,647/x
3. Step 3: Cross multiply
   326,617.50x = 499,647 × 499,647
4. Step 4: Simplify right side
   326,617.50x = 249,647,124,609
5. Step 5: Solve for x
   x = 249,647,124,609/326,617.50
6. Step 6: Final answer
   x = 764,340.93