Finding the Third Proportional to 2,140,299 and 4,457,742

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,299 : 4,457,742 = 4,457,742 : x
2. Step 2: Convert to fraction form
   2,140,299/4,457,742 = 4,457,742/x
3. Step 3: Cross multiply
   2,140,299x = 4,457,742 × 4,457,742
4. Step 4: Simplify right side
   2,140,299x = 19,871,463,738,564
5. Step 5: Solve for x
   x = 19,871,463,738,564/2,140,299
6. Step 6: Final answer
   x = 9,284,433.50