Finding the Third Proportional to 2,133,580 and 4,622,912

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133,580 : 4,622,912 = 4,622,912 : x
2. Step 2: Convert to fraction form
   2,133,580/4,622,912 = 4,622,912/x
3. Step 3: Cross multiply
   2,133,580x = 4,622,912 × 4,622,912
4. Step 4: Simplify right side
   2,133,580x = 21,371,315,359,744
5. Step 5: Solve for x
   x = 21,371,315,359,744/2,133,580
6. Step 6: Final answer
   x = 10,016,645.90