Finding the Third Proportional to 2,140,229 and 4,457,605

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,229 : 4,457,605 = 4,457,605 : x
2. Step 2: Convert to fraction form
   2,140,229/4,457,605 = 4,457,605/x
3. Step 3: Cross multiply
   2,140,229x = 4,457,605 × 4,457,605
4. Step 4: Simplify right side
   2,140,229x = 19,870,242,336,025
5. Step 5: Solve for x
   x = 19,870,242,336,025/2,140,229
6. Step 6: Final answer
   x = 9,284,166.48