Finding the Third Proportional to 1,257,734 and 1,777,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257,734 : 1,777,980 = 1,777,980 : x
2. Step 2: Convert to fraction form
   1,257,734/1,777,980 = 1,777,980/x
3. Step 3: Cross multiply
   1,257,734x = 1,777,980 × 1,777,980
4. Step 4: Simplify right side
   1,257,734x = 3,161,212,880,400
5. Step 5: Solve for x
   x = 3,161,212,880,400/1,257,734
6. Step 6: Final answer
   x = 2,513,419.28