Finding the Third Proportional to 326,623.50 and 499,656

Step by Step Solution

1. Step 1: Write the proportion equation
   326,623.50 : 499,656 = 499,656 : x
2. Step 2: Convert to fraction form
   326,623.50/499,656 = 499,656/x
3. Step 3: Cross multiply
   326,623.50x = 499,656 × 499,656
4. Step 4: Simplify right side
   326,623.50x = 249,656,118,336
5. Step 5: Solve for x
   x = 249,656,118,336/326,623.50
6. Step 6: Final answer
   x = 764,354.43