Finding the Third Proportional to 728,114 and 1,139,696

Step by Step Solution

1. Step 1: Write the proportion equation
   728,114 : 1,139,696 = 1,139,696 : x
2. Step 2: Convert to fraction form
   728,114/1,139,696 = 1,139,696/x
3. Step 3: Cross multiply
   728,114x = 1,139,696 × 1,139,696
4. Step 4: Simplify right side
   728,114x = 1,298,906,972,416
5. Step 5: Solve for x
   x = 1,298,906,972,416/728,114
6. Step 6: Final answer
   x = 1,783,933.52