Finding the Third Proportional to 111,640 and 244,272

Step by Step Solution

1. Step 1: Write the proportion equation
   111,640 : 244,272 = 244,272 : x
2. Step 2: Convert to fraction form
   111,640/244,272 = 244,272/x
3. Step 3: Cross multiply
   111,640x = 244,272 × 244,272
4. Step 4: Simplify right side
   111,640x = 59,668,809,984
5. Step 5: Solve for x
   x = 59,668,809,984/111,640
6. Step 6: Final answer
   x = 534,475.19