Finding the Third Proportional to 111,498 and 241,172

Step by Step Solution

1. Step 1: Write the proportion equation
   111,498 : 241,172 = 241,172 : x
2. Step 2: Convert to fraction form
   111,498/241,172 = 241,172/x
3. Step 3: Cross multiply
   111,498x = 241,172 × 241,172
4. Step 4: Simplify right side
   111,498x = 58,163,933,584
5. Step 5: Solve for x
   x = 58,163,933,584/111,498
6. Step 6: Final answer
   x = 521,658.99