Finding the Third Proportional to 1,299,992 and 2,898,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,992 : 2,898,728 = 2,898,728 : x
2. Step 2: Convert to fraction form
   1,299,992/2,898,728 = 2,898,728/x
3. Step 3: Cross multiply
   1,299,992x = 2,898,728 × 2,898,728
4. Step 4: Simplify right side
   1,299,992x = 8,402,624,017,984
5. Step 5: Solve for x
   x = 8,402,624,017,984/1,299,992
6. Step 6: Final answer
   x = 6,463,596.71