Finding the Third Proportional to 111,423 and 240,170

Step by Step Solution

1. Step 1: Write the proportion equation
   111,423 : 240,170 = 240,170 : x
2. Step 2: Convert to fraction form
   111,423/240,170 = 240,170/x
3. Step 3: Cross multiply
   111,423x = 240,170 × 240,170
4. Step 4: Simplify right side
   111,423x = 57,681,628,900
5. Step 5: Solve for x
   x = 57,681,628,900/111,423
6. Step 6: Final answer
   x = 517,681.53