Finding the Third Proportional to 363,723 and 790,404

Step by Step Solution

1. Step 1: Write the proportion equation
   363,723 : 790,404 = 790,404 : x
2. Step 2: Convert to fraction form
   363,723/790,404 = 790,404/x
3. Step 3: Cross multiply
   363,723x = 790,404 × 790,404
4. Step 4: Simplify right side
   363,723x = 624,738,483,216
5. Step 5: Solve for x
   x = 624,738,483,216/363,723
6. Step 6: Final answer
   x = 1,717,621.61