Finding the Third Proportional to 3,435,272 and 7,479,664

Step by Step Solution

1. Step 1: Write the proportion equation
   3,435,272 : 7,479,664 = 7,479,664 : x
2. Step 2: Convert to fraction form
   3,435,272/7,479,664 = 7,479,664/x
3. Step 3: Cross multiply
   3,435,272x = 7,479,664 × 7,479,664
4. Step 4: Simplify right side
   3,435,272x = 55,945,373,552,896
5. Step 5: Solve for x
   x = 55,945,373,552,896/3,435,272
6. Step 6: Final answer
   x = 16,285,573.18