Finding the Third Proportional to 326,498.38 and 494,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,498.38 : 494,685.50 = 494,685.50 : x
2. Step 2: Convert to fraction form
   326,498.38/494,685.50 = 494,685.50/x
3. Step 3: Cross multiply
   326,498.38x = 494,685.50 × 494,685.50
4. Step 4: Simplify right side
   326,498.38x = 244,713,743,910.25
5. Step 5: Solve for x
   x = 244,713,743,910.25/326,498.38
6. Step 6: Final answer
   x = 749,509.84