Finding the Third Proportional to 363,244.50 and 498,636

Step by Step Solution

1. Step 1: Write the proportion equation
   363,244.50 : 498,636 = 498,636 : x
2. Step 2: Convert to fraction form
   363,244.50/498,636 = 498,636/x
3. Step 3: Cross multiply
   363,244.50x = 498,636 × 498,636
4. Step 4: Simplify right side
   363,244.50x = 248,637,860,496
5. Step 5: Solve for x
   x = 248,637,860,496/363,244.50
6. Step 6: Final answer
   x = 684,491.74