Finding the Third Proportional to 111,513 and 245,166

Step by Step Solution

1. Step 1: Write the proportion equation
   111,513 : 245,166 = 245,166 : x
2. Step 2: Convert to fraction form
   111,513/245,166 = 245,166/x
3. Step 3: Cross multiply
   111,513x = 245,166 × 245,166
4. Step 4: Simplify right side
   111,513x = 60,106,367,556
5. Step 5: Solve for x
   x = 60,106,367,556/111,513
6. Step 6: Final answer
   x = 539,007.72