Finding the Third Proportional to 636,223 and 1,372,112

Step by Step Solution

1. Step 1: Write the proportion equation
   636,223 : 1,372,112 = 1,372,112 : x
2. Step 2: Convert to fraction form
   636,223/1,372,112 = 1,372,112/x
3. Step 3: Cross multiply
   636,223x = 1,372,112 × 1,372,112
4. Step 4: Simplify right side
   636,223x = 1,882,691,340,544
5. Step 5: Solve for x
   x = 1,882,691,340,544/636,223
6. Step 6: Final answer
   x = 2,959,168.94