Finding the Third Proportional to 678,456 and 1,459,944

Step by Step Solution

1. Step 1: Write the proportion equation
   678,456 : 1,459,944 = 1,459,944 : x
2. Step 2: Convert to fraction form
   678,456/1,459,944 = 1,459,944/x
3. Step 3: Cross multiply
   678,456x = 1,459,944 × 1,459,944
4. Step 4: Simplify right side
   678,456x = 2,131,436,483,136
5. Step 5: Solve for x
   x = 2,131,436,483,136/678,456
6. Step 6: Final answer
   x = 3,141,598.69