Finding the Third Proportional to 3,451,820 and 7,509,664

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451,820 : 7,509,664 = 7,509,664 : x
2. Step 2: Convert to fraction form
   3,451,820/7,509,664 = 7,509,664/x
3. Step 3: Cross multiply
   3,451,820x = 7,509,664 × 7,509,664
4. Step 4: Simplify right side
   3,451,820x = 56,395,053,392,896
5. Step 5: Solve for x
   x = 56,395,053,392,896/3,451,820
6. Step 6: Final answer
   x = 16,337,773.52