Finding the Third Proportional to 111,567 and 245,247

Step by Step Solution

1. Step 1: Write the proportion equation
   111,567 : 245,247 = 245,247 : x
2. Step 2: Convert to fraction form
   111,567/245,247 = 245,247/x
3. Step 3: Cross multiply
   111,567x = 245,247 × 245,247
4. Step 4: Simplify right side
   111,567x = 60,146,091,009
5. Step 5: Solve for x
   x = 60,146,091,009/111,567
6. Step 6: Final answer
   x = 539,102.88