Finding the Third Proportional to 111,393 and 240,354

Step by Step Solution

1. Step 1: Write the proportion equation
   111,393 : 240,354 = 240,354 : x
2. Step 2: Convert to fraction form
   111,393/240,354 = 240,354/x
3. Step 3: Cross multiply
   111,393x = 240,354 × 240,354
4. Step 4: Simplify right side
   111,393x = 57,770,045,316
5. Step 5: Solve for x
   x = 57,770,045,316/111,393
6. Step 6: Final answer
   x = 518,614.68