Finding the Third Proportional to 505,142 and 1,080,328

Step by Step Solution

1. Step 1: Write the proportion equation
   505,142 : 1,080,328 = 1,080,328 : x
2. Step 2: Convert to fraction form
   505,142/1,080,328 = 1,080,328/x
3. Step 3: Cross multiply
   505,142x = 1,080,328 × 1,080,328
4. Step 4: Simplify right side
   505,142x = 1,167,108,587,584
5. Step 5: Solve for x
   x = 1,167,108,587,584/505,142
6. Step 6: Final answer
   x = 2,310,456.44