Finding the Third Proportional to 1,393,137 and 2,845,311

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393,137 : 2,845,311 = 2,845,311 : x
2. Step 2: Convert to fraction form
   1,393,137/2,845,311 = 2,845,311/x
3. Step 3: Cross multiply
   1,393,137x = 2,845,311 × 2,845,311
4. Step 4: Simplify right side
   1,393,137x = 8,095,794,686,721
5. Step 5: Solve for x
   x = 8,095,794,686,721/1,393,137
6. Step 6: Final answer
   x = 5,811,197.81