Finding the Third Proportional to 3,290,666 and 7,211,604

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290,666 : 7,211,604 = 7,211,604 : x
2. Step 2: Convert to fraction form
   3,290,666/7,211,604 = 7,211,604/x
3. Step 3: Cross multiply
   3,290,666x = 7,211,604 × 7,211,604
4. Step 4: Simplify right side
   3,290,666x = 52,007,232,252,816
5. Step 5: Solve for x
   x = 52,007,232,252,816/3,290,666
6. Step 6: Final answer
   x = 15,804,470.05