Finding the Third Proportional to 678,870 and 1,025,227

Step by Step Solution

1. Step 1: Write the proportion equation
   678,870 : 1,025,227 = 1,025,227 : x
2. Step 2: Convert to fraction form
   678,870/1,025,227 = 1,025,227/x
3. Step 3: Cross multiply
   678,870x = 1,025,227 × 1,025,227
4. Step 4: Simplify right side
   678,870x = 1,051,090,401,529
5. Step 5: Solve for x
   x = 1,051,090,401,529/678,870
6. Step 6: Final answer
   x = 1,548,294.08