Finding the Third Proportional to 636,336 and 1,372,308

Step by Step Solution

1. Step 1: Write the proportion equation
   636,336 : 1,372,308 = 1,372,308 : x
2. Step 2: Convert to fraction form
   636,336/1,372,308 = 1,372,308/x
3. Step 3: Cross multiply
   636,336x = 1,372,308 × 1,372,308
4. Step 4: Simplify right side
   636,336x = 1,883,229,246,864
5. Step 5: Solve for x
   x = 1,883,229,246,864/636,336
6. Step 6: Final answer
   x = 2,959,488.77