Finding the Third Proportional to 3,530,388 and 7,620,648

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530,388 : 7,620,648 = 7,620,648 : x
2. Step 2: Convert to fraction form
   3,530,388/7,620,648 = 7,620,648/x
3. Step 3: Cross multiply
   3,530,388x = 7,620,648 × 7,620,648
4. Step 4: Simplify right side
   3,530,388x = 58,074,275,939,904
5. Step 5: Solve for x
   x = 58,074,275,939,904/3,530,388
6. Step 6: Final answer
   x = 16,449,828.16