Finding the Third Proportional to 111,312 and 247,504

Step by Step Solution

1. Step 1: Write the proportion equation
   111,312 : 247,504 = 247,504 : x
2. Step 2: Convert to fraction form
   111,312/247,504 = 247,504/x
3. Step 3: Cross multiply
   111,312x = 247,504 × 247,504
4. Step 4: Simplify right side
   111,312x = 61,258,230,016
5. Step 5: Solve for x
   x = 61,258,230,016/111,312
6. Step 6: Final answer
   x = 550,329.08