Finding the Third Proportional to 683,642 and 1,490,298

Step by Step Solution

1. Step 1: Write the proportion equation
   683,642 : 1,490,298 = 1,490,298 : x
2. Step 2: Convert to fraction form
   683,642/1,490,298 = 1,490,298/x
3. Step 3: Cross multiply
   683,642x = 1,490,298 × 1,490,298
4. Step 4: Simplify right side
   683,642x = 2,220,988,128,804
5. Step 5: Solve for x
   x = 2,220,988,128,804/683,642
6. Step 6: Final answer
   x = 3,248,759.04