Finding the Third Proportional to 325,485 and 492,819

Step by Step Solution

1. Step 1: Write the proportion equation
   325,485 : 492,819 = 492,819 : x
2. Step 2: Convert to fraction form
   325,485/492,819 = 492,819/x
3. Step 3: Cross multiply
   325,485x = 492,819 × 492,819
4. Step 4: Simplify right side
   325,485x = 242,870,566,761
5. Step 5: Solve for x
   x = 242,870,566,761/325,485
6. Step 6: Final answer
   x = 746,180.52