Finding the Third Proportional to 3,216,820 and 4,900,699

Step by Step Solution

1. Step 1: Write the proportion equation
   3,216,820 : 4,900,699 = 4,900,699 : x
2. Step 2: Convert to fraction form
   3,216,820/4,900,699 = 4,900,699/x
3. Step 3: Cross multiply
   3,216,820x = 4,900,699 × 4,900,699
4. Step 4: Simplify right side
   3,216,820x = 24,016,850,688,601
5. Step 5: Solve for x
   x = 24,016,850,688,601/3,216,820
6. Step 6: Final answer
   x = 7,466,022.56