Finding the Third Proportional to 673,980 and 1,442,729

Step by Step Solution

1. Step 1: Write the proportion equation
   673,980 : 1,442,729 = 1,442,729 : x
2. Step 2: Convert to fraction form
   673,980/1,442,729 = 1,442,729/x
3. Step 3: Cross multiply
   673,980x = 1,442,729 × 1,442,729
4. Step 4: Simplify right side
   673,980x = 2,081,466,967,441
5. Step 5: Solve for x
   x = 2,081,466,967,441/673,980
6. Step 6: Final answer
   x = 3,088,321.56