Finding the Third Proportional to 1,954,644 and 4,243,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,954,644 : 4,243,512 = 4,243,512 : x
2. Step 2: Convert to fraction form
   1,954,644/4,243,512 = 4,243,512/x
3. Step 3: Cross multiply
   1,954,644x = 4,243,512 × 4,243,512
4. Step 4: Simplify right side
   1,954,644x = 18,007,394,094,144
5. Step 5: Solve for x
   x = 18,007,394,094,144/1,954,644
6. Step 6: Final answer
   x = 9,212,620.86