Finding the Third Proportional to 111,692 and 240,879

Step by Step Solution

1. Step 1: Write the proportion equation
   111,692 : 240,879 = 240,879 : x
2. Step 2: Convert to fraction form
   111,692/240,879 = 240,879/x
3. Step 3: Cross multiply
   111,692x = 240,879 × 240,879
4. Step 4: Simplify right side
   111,692x = 58,022,692,641
5. Step 5: Solve for x
   x = 58,022,692,641/111,692
6. Step 6: Final answer
   x = 519,488.35