Finding the Third Proportional to 111,566 and 245,370

Step by Step Solution

1. Step 1: Write the proportion equation
   111,566 : 245,370 = 245,370 : x
2. Step 2: Convert to fraction form
   111,566/245,370 = 245,370/x
3. Step 3: Cross multiply
   111,566x = 245,370 × 245,370
4. Step 4: Simplify right side
   111,566x = 60,206,436,900
5. Step 5: Solve for x
   x = 60,206,436,900/111,566
6. Step 6: Final answer
   x = 539,648.61