Finding the Third Proportional to 2,678,620 and 5,622,576

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,620 : 5,622,576 = 5,622,576 : x
2. Step 2: Convert to fraction form
   2,678,620/5,622,576 = 5,622,576/x
3. Step 3: Cross multiply
   2,678,620x = 5,622,576 × 5,622,576
4. Step 4: Simplify right side
   2,678,620x = 31,613,360,875,776
5. Step 5: Solve for x
   x = 31,613,360,875,776/2,678,620
6. Step 6: Final answer
   x = 11,802,107.38