Finding the Third Proportional to 636,520 and 1,383,470

Step by Step Solution

1. Step 1: Write the proportion equation
   636,520 : 1,383,470 = 1,383,470 : x
2. Step 2: Convert to fraction form
   636,520/1,383,470 = 1,383,470/x
3. Step 3: Cross multiply
   636,520x = 1,383,470 × 1,383,470
4. Step 4: Simplify right side
   636,520x = 1,913,989,240,900
5. Step 5: Solve for x
   x = 1,913,989,240,900/636,520
6. Step 6: Final answer
   x = 3,006,958.53