Finding the Third Proportional to 111,647 and 240,786

Step by Step Solution

1. Step 1: Write the proportion equation
   111,647 : 240,786 = 240,786 : x
2. Step 2: Convert to fraction form
   111,647/240,786 = 240,786/x
3. Step 3: Cross multiply
   111,647x = 240,786 × 240,786
4. Step 4: Simplify right side
   111,647x = 57,977,897,796
5. Step 5: Solve for x
   x = 57,977,897,796/111,647
6. Step 6: Final answer
   x = 519,296.51