Finding the Third Proportional to 728,104 and 1,139,684

Step by Step Solution

1. Step 1: Write the proportion equation
   728,104 : 1,139,684 = 1,139,684 : x
2. Step 2: Convert to fraction form
   728,104/1,139,684 = 1,139,684/x
3. Step 3: Cross multiply
   728,104x = 1,139,684 × 1,139,684
4. Step 4: Simplify right side
   728,104x = 1,298,879,619,856
5. Step 5: Solve for x
   x = 1,298,879,619,856/728,104
6. Step 6: Final answer
   x = 1,783,920.46