Finding the Third Proportional to 262,242 and 555,858

Step by Step Solution

1. Step 1: Write the proportion equation
   262,242 : 555,858 = 555,858 : x
2. Step 2: Convert to fraction form
   262,242/555,858 = 555,858/x
3. Step 3: Cross multiply
   262,242x = 555,858 × 555,858
4. Step 4: Simplify right side
   262,242x = 308,978,116,164
5. Step 5: Solve for x
   x = 308,978,116,164/262,242
6. Step 6: Final answer
   x = 1,178,217.51