Finding the Third Proportional to 603,864 and 1,279,648

Step by Step Solution

1. Step 1: Write the proportion equation
   603,864 : 1,279,648 = 1,279,648 : x
2. Step 2: Convert to fraction form
   603,864/1,279,648 = 1,279,648/x
3. Step 3: Cross multiply
   603,864x = 1,279,648 × 1,279,648
4. Step 4: Simplify right side
   603,864x = 1,637,499,003,904
5. Step 5: Solve for x
   x = 1,637,499,003,904/603,864
6. Step 6: Final answer
   x = 2,711,701.65