Finding the Third Proportional to 622,361 and 1,267,555

Step by Step Solution

1. Step 1: Write the proportion equation
   622,361 : 1,267,555 = 1,267,555 : x
2. Step 2: Convert to fraction form
   622,361/1,267,555 = 1,267,555/x
3. Step 3: Cross multiply
   622,361x = 1,267,555 × 1,267,555
4. Step 4: Simplify right side
   622,361x = 1,606,695,678,025
5. Step 5: Solve for x
   x = 1,606,695,678,025/622,361
6. Step 6: Final answer
   x = 2,581,613.69