Finding the Third Proportional to 3,288,612 and 7,173,272

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288,612 : 7,173,272 = 7,173,272 : x
2. Step 2: Convert to fraction form
   3,288,612/7,173,272 = 7,173,272/x
3. Step 3: Cross multiply
   3,288,612x = 7,173,272 × 7,173,272
4. Step 4: Simplify right side
   3,288,612x = 51,455,831,185,984
5. Step 5: Solve for x
   x = 51,455,831,185,984/3,288,612
6. Step 6: Final answer
   x = 15,646,671.36