Finding the Third Proportional to 612,406 and 1,313,404

Step by Step Solution

1. Step 1: Write the proportion equation
   612,406 : 1,313,404 = 1,313,404 : x
2. Step 2: Convert to fraction form
   612,406/1,313,404 = 1,313,404/x
3. Step 3: Cross multiply
   612,406x = 1,313,404 × 1,313,404
4. Step 4: Simplify right side
   612,406x = 1,725,030,067,216
5. Step 5: Solve for x
   x = 1,725,030,067,216/612,406
6. Step 6: Final answer
   x = 2,816,807.91