Finding the Third Proportional to 2,116,821 and 4,506,747

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,821 : 4,506,747 = 4,506,747 : x
2. Step 2: Convert to fraction form
   2,116,821/4,506,747 = 4,506,747/x
3. Step 3: Cross multiply
   2,116,821x = 4,506,747 × 4,506,747
4. Step 4: Simplify right side
   2,116,821x = 20,310,768,522,009
5. Step 5: Solve for x
   x = 20,310,768,522,009/2,116,821
6. Step 6: Final answer
   x = 9,594,939.07