Finding the Third Proportional to 1,236,638 and 2,684,774

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,638 : 2,684,774 = 2,684,774 : x
2. Step 2: Convert to fraction form
   1,236,638/2,684,774 = 2,684,774/x
3. Step 3: Cross multiply
   1,236,638x = 2,684,774 × 2,684,774
4. Step 4: Simplify right side
   1,236,638x = 7,208,011,431,076
5. Step 5: Solve for x
   x = 7,208,011,431,076/1,236,638
6. Step 6: Final answer
   x = 5,828,715.79