Finding the Third Proportional to 326,416.50 and 499,284

Step by Step Solution

1. Step 1: Write the proportion equation
   326,416.50 : 499,284 = 499,284 : x
2. Step 2: Convert to fraction form
   326,416.50/499,284 = 499,284/x
3. Step 3: Cross multiply
   326,416.50x = 499,284 × 499,284
4. Step 4: Simplify right side
   326,416.50x = 249,284,512,656
5. Step 5: Solve for x
   x = 249,284,512,656/326,416.50
6. Step 6: Final answer
   x = 763,700.71