Finding the Third Proportional to 498,642 and 1,026,687

Step by Step Solution

1. Step 1: Write the proportion equation
   498,642 : 1,026,687 = 1,026,687 : x
2. Step 2: Convert to fraction form
   498,642/1,026,687 = 1,026,687/x
3. Step 3: Cross multiply
   498,642x = 1,026,687 × 1,026,687
4. Step 4: Simplify right side
   498,642x = 1,054,086,195,969
5. Step 5: Solve for x
   x = 1,054,086,195,969/498,642
6. Step 6: Final answer
   x = 2,113,913.78