Finding the Third Proportional to 1,515,027 and 3,315,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,027 : 3,315,120 = 3,315,120 : x
2. Step 2: Convert to fraction form
   1,515,027/3,315,120 = 3,315,120/x
3. Step 3: Cross multiply
   1,515,027x = 3,315,120 × 3,315,120
4. Step 4: Simplify right side
   1,515,027x = 10,990,020,614,400
5. Step 5: Solve for x
   x = 10,990,020,614,400/1,515,027
6. Step 6: Final answer
   x = 7,254,009.74