Finding the Third Proportional to 111,856 and 245,816

Step by Step Solution

1. Step 1: Write the proportion equation
   111,856 : 245,816 = 245,816 : x
2. Step 2: Convert to fraction form
   111,856/245,816 = 245,816/x
3. Step 3: Cross multiply
   111,856x = 245,816 × 245,816
4. Step 4: Simplify right side
   111,856x = 60,425,505,856
5. Step 5: Solve for x
   x = 60,425,505,856/111,856
6. Step 6: Final answer
   x = 540,208.00