Finding the Third Proportional to 687,078 and 1,027,458

Step by Step Solution

1. Step 1: Write the proportion equation
   687,078 : 1,027,458 = 1,027,458 : x
2. Step 2: Convert to fraction form
   687,078/1,027,458 = 1,027,458/x
3. Step 3: Cross multiply
   687,078x = 1,027,458 × 1,027,458
4. Step 4: Simplify right side
   687,078x = 1,055,669,941,764
5. Step 5: Solve for x
   x = 1,055,669,941,764/687,078
6. Step 6: Final answer
   x = 1,536,463.02