Finding the Third Proportional to 1,247,620 and 2,644,064

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,620 : 2,644,064 = 2,644,064 : x
2. Step 2: Convert to fraction form
   1,247,620/2,644,064 = 2,644,064/x
3. Step 3: Cross multiply
   1,247,620x = 2,644,064 × 2,644,064
4. Step 4: Simplify right side
   1,247,620x = 6,991,074,436,096
5. Step 5: Solve for x
   x = 6,991,074,436,096/1,247,620
6. Step 6: Final answer
   x = 5,603,528.67