Finding the Third Proportional to 636,386 and 1,372,350

Step by Step Solution

1. Step 1: Write the proportion equation
   636,386 : 1,372,350 = 1,372,350 : x
2. Step 2: Convert to fraction form
   636,386/1,372,350 = 1,372,350/x
3. Step 3: Cross multiply
   636,386x = 1,372,350 × 1,372,350
4. Step 4: Simplify right side
   636,386x = 1,883,344,522,500
5. Step 5: Solve for x
   x = 1,883,344,522,500/636,386
6. Step 6: Final answer
   x = 2,959,437.39