Finding the Third Proportional to 816,540 and 1,067,340

Step by Step Solution

1. Step 1: Write the proportion equation
   816,540 : 1,067,340 = 1,067,340 : x
2. Step 2: Convert to fraction form
   816,540/1,067,340 = 1,067,340/x
3. Step 3: Cross multiply
   816,540x = 1,067,340 × 1,067,340
4. Step 4: Simplify right side
   816,540x = 1,139,214,675,600
5. Step 5: Solve for x
   x = 1,139,214,675,600/816,540
6. Step 6: Final answer
   x = 1,395,173.14