Finding the Third Proportional to 111,476.25 and 243,324

Step by Step Solution

1. Step 1: Write the proportion equation
   111,476.25 : 243,324 = 243,324 : x
2. Step 2: Convert to fraction form
   111,476.25/243,324 = 243,324/x
3. Step 3: Cross multiply
   111,476.25x = 243,324 × 243,324
4. Step 4: Simplify right side
   111,476.25x = 59,206,568,976
5. Step 5: Solve for x
   x = 59,206,568,976/111,476.25
6. Step 6: Final answer
   x = 531,113.75