Finding the Third Proportional to 676,392 and 1,428,192

Step by Step Solution

1. Step 1: Write the proportion equation
   676,392 : 1,428,192 = 1,428,192 : x
2. Step 2: Convert to fraction form
   676,392/1,428,192 = 1,428,192/x
3. Step 3: Cross multiply
   676,392x = 1,428,192 × 1,428,192
4. Step 4: Simplify right side
   676,392x = 2,039,732,388,864
5. Step 5: Solve for x
   x = 2,039,732,388,864/676,392
6. Step 6: Final answer
   x = 3,015,606.91