Finding the Third Proportional to 982,790 and 2,143,456

Step by Step Solution

1. Step 1: Write the proportion equation
   982,790 : 2,143,456 = 2,143,456 : x
2. Step 2: Convert to fraction form
   982,790/2,143,456 = 2,143,456/x
3. Step 3: Cross multiply
   982,790x = 2,143,456 × 2,143,456
4. Step 4: Simplify right side
   982,790x = 4,594,403,623,936
5. Step 5: Solve for x
   x = 4,594,403,623,936/982,790
6. Step 6: Final answer
   x = 4,674,857.93