Finding the Third Proportional to 2,163,405 and 4,616,371

Step by Step Solution

1. Step 1: Write the proportion equation
   2,163,405 : 4,616,371 = 4,616,371 : x
2. Step 2: Convert to fraction form
   2,163,405/4,616,371 = 4,616,371/x
3. Step 3: Cross multiply
   2,163,405x = 4,616,371 × 4,616,371
4. Step 4: Simplify right side
   2,163,405x = 21,310,881,209,641
5. Step 5: Solve for x
   x = 21,310,881,209,641/2,163,405
6. Step 6: Final answer
   x = 9,850,620.30