Finding the Third Proportional to 2,171,066 and 4,640,914

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,066 : 4,640,914 = 4,640,914 : x
2. Step 2: Convert to fraction form
   2,171,066/4,640,914 = 4,640,914/x
3. Step 3: Cross multiply
   2,171,066x = 4,640,914 × 4,640,914
4. Step 4: Simplify right side
   2,171,066x = 21,538,082,755,396
5. Step 5: Solve for x
   x = 21,538,082,755,396/2,171,066
6. Step 6: Final answer
   x = 9,920,510.36