Finding the Third Proportional to 603,548 and 1,315,320

Step by Step Solution

1. Step 1: Write the proportion equation
   603,548 : 1,315,320 = 1,315,320 : x
2. Step 2: Convert to fraction form
   603,548/1,315,320 = 1,315,320/x
3. Step 3: Cross multiply
   603,548x = 1,315,320 × 1,315,320
4. Step 4: Simplify right side
   603,548x = 1,730,066,702,400
5. Step 5: Solve for x
   x = 1,730,066,702,400/603,548
6. Step 6: Final answer
   x = 2,866,493.97