Finding the Third Proportional to 678,504 and 1,412,808

Step by Step Solution

1. Step 1: Write the proportion equation
   678,504 : 1,412,808 = 1,412,808 : x
2. Step 2: Convert to fraction form
   678,504/1,412,808 = 1,412,808/x
3. Step 3: Cross multiply
   678,504x = 1,412,808 × 1,412,808
4. Step 4: Simplify right side
   678,504x = 1,996,026,444,864
5. Step 5: Solve for x
   x = 1,996,026,444,864/678,504
6. Step 6: Final answer
   x = 2,941,804.98