Finding the Third Proportional to 3,347,620 and 7,321,208

Step by Step Solution

1. Step 1: Write the proportion equation
   3,347,620 : 7,321,208 = 7,321,208 : x
2. Step 2: Convert to fraction form
   3,347,620/7,321,208 = 7,321,208/x
3. Step 3: Cross multiply
   3,347,620x = 7,321,208 × 7,321,208
4. Step 4: Simplify right side
   3,347,620x = 53,600,086,579,264
5. Step 5: Solve for x
   x = 53,600,086,579,264/3,347,620
6. Step 6: Final answer
   x = 16,011,401.11