Finding the Third Proportional to 1,515,048 and 3,315,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,048 : 3,315,138 = 3,315,138 : x
2. Step 2: Convert to fraction form
   1,515,048/3,315,138 = 3,315,138/x
3. Step 3: Cross multiply
   1,515,048x = 3,315,138 × 3,315,138
4. Step 4: Simplify right side
   1,515,048x = 10,990,139,959,044
5. Step 5: Solve for x
   x = 10,990,139,959,044/1,515,048
6. Step 6: Final answer
   x = 7,253,987.97