Finding the Third Proportional to 111,388 and 240,164

Step by Step Solution

1. Step 1: Write the proportion equation
   111,388 : 240,164 = 240,164 : x
2. Step 2: Convert to fraction form
   111,388/240,164 = 240,164/x
3. Step 3: Cross multiply
   111,388x = 240,164 × 240,164
4. Step 4: Simplify right side
   111,388x = 57,678,746,896
5. Step 5: Solve for x
   x = 57,678,746,896/111,388
6. Step 6: Final answer
   x = 517,818.32