Finding the Third Proportional to 326,513 and 494,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,513 : 494,698.50 = 494,698.50 : x
2. Step 2: Convert to fraction form
   326,513/494,698.50 = 494,698.50/x
3. Step 3: Cross multiply
   326,513x = 494,698.50 × 494,698.50
4. Step 4: Simplify right side
   326,513x = 244,726,605,902.25
5. Step 5: Solve for x
   x = 244,726,605,902.25/326,513
6. Step 6: Final answer
   x = 749,515.66