Finding the Third Proportional to 111,498 and 240,276

Step by Step Solution

1. Step 1: Write the proportion equation
   111,498 : 240,276 = 240,276 : x
2. Step 2: Convert to fraction form
   111,498/240,276 = 240,276/x
3. Step 3: Cross multiply
   111,498x = 240,276 × 240,276
4. Step 4: Simplify right side
   111,498x = 57,732,556,176
5. Step 5: Solve for x
   x = 57,732,556,176/111,498
6. Step 6: Final answer
   x = 517,790.06