Finding the Third Proportional to 3,263,280 and 7,172,608

Step by Step Solution

1. Step 1: Write the proportion equation
   3,263,280 : 7,172,608 = 7,172,608 : x
2. Step 2: Convert to fraction form
   3,263,280/7,172,608 = 7,172,608/x
3. Step 3: Cross multiply
   3,263,280x = 7,172,608 × 7,172,608
4. Step 4: Simplify right side
   3,263,280x = 51,446,305,521,664
5. Step 5: Solve for x
   x = 51,446,305,521,664/3,263,280
6. Step 6: Final answer
   x = 15,765,213.38