Finding the Third Proportional to 325,578 and 697,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   325,578 : 697,879.50 = 697,879.50 : x
2. Step 2: Convert to fraction form
   325,578/697,879.50 = 697,879.50/x
3. Step 3: Cross multiply
   325,578x = 697,879.50 × 697,879.50
4. Step 4: Simplify right side
   325,578x = 487,035,796,520.25
5. Step 5: Solve for x
   x = 487,035,796,520.25/325,578
6. Step 6: Final answer
   x = 1,495,911.26