Finding the Third Proportional to 498,638 and 1,026,679

Step by Step Solution

1. Step 1: Write the proportion equation
   498,638 : 1,026,679 = 1,026,679 : x
2. Step 2: Convert to fraction form
   498,638/1,026,679 = 1,026,679/x
3. Step 3: Cross multiply
   498,638x = 1,026,679 × 1,026,679
4. Step 4: Simplify right side
   498,638x = 1,054,069,769,041
5. Step 5: Solve for x
   x = 1,054,069,769,041/498,638
6. Step 6: Final answer
   x = 2,113,897.80