Finding the Third Proportional to 2,978,832 and 6,364,320

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,832 : 6,364,320 = 6,364,320 : x
2. Step 2: Convert to fraction form
   2,978,832/6,364,320 = 6,364,320/x
3. Step 3: Cross multiply
   2,978,832x = 6,364,320 × 6,364,320
4. Step 4: Simplify right side
   2,978,832x = 40,504,569,062,400
5. Step 5: Solve for x
   x = 40,504,569,062,400/2,978,832
6. Step 6: Final answer
   x = 13,597,466.75