Finding the Third Proportional to 2,978,834 and 6,364,324

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,834 : 6,364,324 = 6,364,324 : x
2. Step 2: Convert to fraction form
   2,978,834/6,364,324 = 6,364,324/x
3. Step 3: Cross multiply
   2,978,834x = 6,364,324 × 6,364,324
4. Step 4: Simplify right side
   2,978,834x = 40,504,619,976,976
5. Step 5: Solve for x
   x = 40,504,619,976,976/2,978,834
6. Step 6: Final answer
   x = 13,597,474.71