Finding the Third Proportional to 2,156,641 and 4,616,230

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,641 : 4,616,230 = 4,616,230 : x
2. Step 2: Convert to fraction form
   2,156,641/4,616,230 = 4,616,230/x
3. Step 3: Cross multiply
   2,156,641x = 4,616,230 × 4,616,230
4. Step 4: Simplify right side
   2,156,641x = 21,309,579,412,900
5. Step 5: Solve for x
   x = 21,309,579,412,900/2,156,641
6. Step 6: Final answer
   x = 9,880,911.76