Finding the Third Proportional to 603,468 and 1,256,520

Step by Step Solution

1. Step 1: Write the proportion equation
   603,468 : 1,256,520 = 1,256,520 : x
2. Step 2: Convert to fraction form
   603,468/1,256,520 = 1,256,520/x
3. Step 3: Cross multiply
   603,468x = 1,256,520 × 1,256,520
4. Step 4: Simplify right side
   603,468x = 1,578,842,510,400
5. Step 5: Solve for x
   x = 1,578,842,510,400/603,468
6. Step 6: Final answer
   x = 2,616,282.07