Finding the Third Proportional to 603,648 and 1,279,245

Step by Step Solution

1. Step 1: Write the proportion equation
   603,648 : 1,279,245 = 1,279,245 : x
2. Step 2: Convert to fraction form
   603,648/1,279,245 = 1,279,245/x
3. Step 3: Cross multiply
   603,648x = 1,279,245 × 1,279,245
4. Step 4: Simplify right side
   603,648x = 1,636,467,770,025
5. Step 5: Solve for x
   x = 1,636,467,770,025/603,648
6. Step 6: Final answer
   x = 2,710,963.62