Finding the Third Proportional to 111,667 and 240,840

Step by Step Solution

1. Step 1: Write the proportion equation
   111,667 : 240,840 = 240,840 : x
2. Step 2: Convert to fraction form
   111,667/240,840 = 240,840/x
3. Step 3: Cross multiply
   111,667x = 240,840 × 240,840
4. Step 4: Simplify right side
   111,667x = 58,003,905,600
5. Step 5: Solve for x
   x = 58,003,905,600/111,667
6. Step 6: Final answer
   x = 519,436.41