Finding the Third Proportional to 648,851 and 1,393,609

Step by Step Solution

1. Step 1: Write the proportion equation
   648,851 : 1,393,609 = 1,393,609 : x
2. Step 2: Convert to fraction form
   648,851/1,393,609 = 1,393,609/x
3. Step 3: Cross multiply
   648,851x = 1,393,609 × 1,393,609
4. Step 4: Simplify right side
   648,851x = 1,942,146,044,881
5. Step 5: Solve for x
   x = 1,942,146,044,881/648,851
6. Step 6: Final answer
   x = 2,993,208.06