Finding the Third Proportional to 636,636 and 1,372,896

Step by Step Solution

1. Step 1: Write the proportion equation
   636,636 : 1,372,896 = 1,372,896 : x
2. Step 2: Convert to fraction form
   636,636/1,372,896 = 1,372,896/x
3. Step 3: Cross multiply
   636,636x = 1,372,896 × 1,372,896
4. Step 4: Simplify right side
   636,636x = 1,884,843,426,816
5. Step 5: Solve for x
   x = 1,884,843,426,816/636,636
6. Step 6: Final answer
   x = 2,960,629.66