Finding the Third Proportional to 603,540 and 1,256,613

Step by Step Solution

1. Step 1: Write the proportion equation
   603,540 : 1,256,613 = 1,256,613 : x
2. Step 2: Convert to fraction form
   603,540/1,256,613 = 1,256,613/x
3. Step 3: Cross multiply
   603,540x = 1,256,613 × 1,256,613
4. Step 4: Simplify right side
   603,540x = 1,579,076,231,769
5. Step 5: Solve for x
   x = 1,579,076,231,769/603,540
6. Step 6: Final answer
   x = 2,616,357.21