Finding the Third Proportional to 687,926 and 1,042,293

Step by Step Solution

1. Step 1: Write the proportion equation
   687,926 : 1,042,293 = 1,042,293 : x
2. Step 2: Convert to fraction form
   687,926/1,042,293 = 1,042,293/x
3. Step 3: Cross multiply
   687,926x = 1,042,293 × 1,042,293
4. Step 4: Simplify right side
   687,926x = 1,086,374,697,849
5. Step 5: Solve for x
   x = 1,086,374,697,849/687,926
6. Step 6: Final answer
   x = 1,579,202.85