Finding the Third Proportional to 603,548 and 1,256,666

Step by Step Solution

1. Step 1: Write the proportion equation
   603,548 : 1,256,666 = 1,256,666 : x
2. Step 2: Convert to fraction form
   603,548/1,256,666 = 1,256,666/x
3. Step 3: Cross multiply
   603,548x = 1,256,666 × 1,256,666
4. Step 4: Simplify right side
   603,548x = 1,579,209,435,556
5. Step 5: Solve for x
   x = 1,579,209,435,556/603,548
6. Step 6: Final answer
   x = 2,616,543.23