Finding the Third Proportional to 603,518 and 1,256,632

Step by Step Solution

1. Step 1: Write the proportion equation
   603,518 : 1,256,632 = 1,256,632 : x
2. Step 2: Convert to fraction form
   603,518/1,256,632 = 1,256,632/x
3. Step 3: Cross multiply
   603,518x = 1,256,632 × 1,256,632
4. Step 4: Simplify right side
   603,518x = 1,579,123,983,424
5. Step 5: Solve for x
   x = 1,579,123,983,424/603,518
6. Step 6: Final answer
   x = 2,616,531.71