Finding the Third Proportional to 111,579 and 245,271

Step by Step Solution

1. Step 1: Write the proportion equation
   111,579 : 245,271 = 245,271 : x
2. Step 2: Convert to fraction form
   111,579/245,271 = 245,271/x
3. Step 3: Cross multiply
   111,579x = 245,271 × 245,271
4. Step 4: Simplify right side
   111,579x = 60,157,863,441
5. Step 5: Solve for x
   x = 60,157,863,441/111,579
6. Step 6: Final answer
   x = 539,150.41