Finding the Third Proportional to 578,606 and 1,185,398

Step by Step Solution

1. Step 1: Write the proportion equation
   578,606 : 1,185,398 = 1,185,398 : x
2. Step 2: Convert to fraction form
   578,606/1,185,398 = 1,185,398/x
3. Step 3: Cross multiply
   578,606x = 1,185,398 × 1,185,398
4. Step 4: Simplify right side
   578,606x = 1,405,168,418,404
5. Step 5: Solve for x
   x = 1,405,168,418,404/578,606
6. Step 6: Final answer
   x = 2,428,541.04