Finding the Third Proportional to 636,228 and 1,372,122

Step by Step Solution

1. Step 1: Write the proportion equation
   636,228 : 1,372,122 = 1,372,122 : x
2. Step 2: Convert to fraction form
   636,228/1,372,122 = 1,372,122/x
3. Step 3: Cross multiply
   636,228x = 1,372,122 × 1,372,122
4. Step 4: Simplify right side
   636,228x = 1,882,718,782,884
5. Step 5: Solve for x
   x = 1,882,718,782,884/636,228
6. Step 6: Final answer
   x = 2,959,188.82