Finding the Third Proportional to 1,968,728 and 4,210,444

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968,728 : 4,210,444 = 4,210,444 : x
2. Step 2: Convert to fraction form
   1,968,728/4,210,444 = 4,210,444/x
3. Step 3: Cross multiply
   1,968,728x = 4,210,444 × 4,210,444
4. Step 4: Simplify right side
   1,968,728x = 17,727,838,677,136
5. Step 5: Solve for x
   x = 17,727,838,677,136/1,968,728
6. Step 6: Final answer
   x = 9,004,717.10