Finding the Third Proportional to 1,515,028 and 3,315,122

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,028 : 3,315,122 = 3,315,122 : x
2. Step 2: Convert to fraction form
   1,515,028/3,315,122 = 3,315,122/x
3. Step 3: Cross multiply
   1,515,028x = 3,315,122 × 3,315,122
4. Step 4: Simplify right side
   1,515,028x = 10,990,033,874,884
5. Step 5: Solve for x
   x = 10,990,033,874,884/1,515,028
6. Step 6: Final answer
   x = 7,254,013.70