Finding the Third Proportional to 1,647,292 and 3,609,512

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647,292 : 3,609,512 = 3,609,512 : x
2. Step 2: Convert to fraction form
   1,647,292/3,609,512 = 3,609,512/x
3. Step 3: Cross multiply
   1,647,292x = 3,609,512 × 3,609,512
4. Step 4: Simplify right side
   1,647,292x = 13,028,576,878,144
5. Step 5: Solve for x
   x = 13,028,576,878,144/1,647,292
6. Step 6: Final answer
   x = 7,909,087.69