Finding the Third Proportional to 111,584 and 245,344

Step by Step Solution

1. Step 1: Write the proportion equation
   111,584 : 245,344 = 245,344 : x
2. Step 2: Convert to fraction form
   111,584/245,344 = 245,344/x
3. Step 3: Cross multiply
   111,584x = 245,344 × 245,344
4. Step 4: Simplify right side
   111,584x = 60,193,678,336
5. Step 5: Solve for x
   x = 60,193,678,336/111,584
6. Step 6: Final answer
   x = 539,447.22