Finding the Third Proportional to 3,236,747 and 6,978,328

Step by Step Solution

1. Step 1: Write the proportion equation
   3,236,747 : 6,978,328 = 6,978,328 : x
2. Step 2: Convert to fraction form
   3,236,747/6,978,328 = 6,978,328/x
3. Step 3: Cross multiply
   3,236,747x = 6,978,328 × 6,978,328
4. Step 4: Simplify right side
   3,236,747x = 48,697,061,675,584
5. Step 5: Solve for x
   x = 48,697,061,675,584/3,236,747
6. Step 6: Final answer
   x = 15,045,062.74