Finding the Third Proportional to 111,400 and 240,366

Step by Step Solution

1. Step 1: Write the proportion equation
   111,400 : 240,366 = 240,366 : x
2. Step 2: Convert to fraction form
   111,400/240,366 = 240,366/x
3. Step 3: Cross multiply
   111,400x = 240,366 × 240,366
4. Step 4: Simplify right side
   111,400x = 57,775,813,956
5. Step 5: Solve for x
   x = 57,775,813,956/111,400
6. Step 6: Final answer
   x = 518,633.88