Finding the Third Proportional to 1,648,578 and 3,474,275

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,578 : 3,474,275 = 3,474,275 : x
2. Step 2: Convert to fraction form
   1,648,578/3,474,275 = 3,474,275/x
3. Step 3: Cross multiply
   1,648,578x = 3,474,275 × 3,474,275
4. Step 4: Simplify right side
   1,648,578x = 12,070,586,775,625
5. Step 5: Solve for x
   x = 12,070,586,775,625/1,648,578
6. Step 6: Final answer
   x = 7,321,817.21