Finding the Third Proportional to 3,530,394 and 7,620,660

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530,394 : 7,620,660 = 7,620,660 : x
2. Step 2: Convert to fraction form
   3,530,394/7,620,660 = 7,620,660/x
3. Step 3: Cross multiply
   3,530,394x = 7,620,660 × 7,620,660
4. Step 4: Simplify right side
   3,530,394x = 58,074,458,835,600
5. Step 5: Solve for x
   x = 58,074,458,835,600/3,530,394
6. Step 6: Final answer
   x = 16,449,852.01