Finding the Third Proportional to 326,498.50 and 494,685.63

Step by Step Solution

1. Step 1: Write the proportion equation
   326,498.50 : 494,685.63 = 494,685.63 : x
2. Step 2: Convert to fraction form
   326,498.50/494,685.63 = 494,685.63/x
3. Step 3: Cross multiply
   326,498.50x = 494,685.63 × 494,685.63
4. Step 4: Simplify right side
   326,498.50x = 244,713,867,581.64
5. Step 5: Solve for x
   x = 244,713,867,581.64/326,498.50
6. Step 6: Final answer
   x = 749,509.93