Finding the Third Proportional to 2,171,065 and 4,640,911

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,065 : 4,640,911 = 4,640,911 : x
2. Step 2: Convert to fraction form
   2,171,065/4,640,911 = 4,640,911/x
3. Step 3: Cross multiply
   2,171,065x = 4,640,911 × 4,640,911
4. Step 4: Simplify right side
   2,171,065x = 21,538,054,909,921
5. Step 5: Solve for x
   x = 21,538,054,909,921/2,171,065
6. Step 6: Final answer
   x = 9,920,502.11