Finding the Third Proportional to 1,982,212 and 4,328,457

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982,212 : 4,328,457 = 4,328,457 : x
2. Step 2: Convert to fraction form
   1,982,212/4,328,457 = 4,328,457/x
3. Step 3: Cross multiply
   1,982,212x = 4,328,457 × 4,328,457
4. Step 4: Simplify right side
   1,982,212x = 18,735,540,000,849
5. Step 5: Solve for x
   x = 18,735,540,000,849/1,982,212
6. Step 6: Final answer
   x = 9,451,834.62