Finding the Third Proportional to 111,684 and 240,863

Step by Step Solution

1. Step 1: Write the proportion equation
   111,684 : 240,863 = 240,863 : x
2. Step 2: Convert to fraction form
   111,684/240,863 = 240,863/x
3. Step 3: Cross multiply
   111,684x = 240,863 × 240,863
4. Step 4: Simplify right side
   111,684x = 58,014,984,769
5. Step 5: Solve for x
   x = 58,014,984,769/111,684
6. Step 6: Final answer
   x = 519,456.54