Finding the Third Proportional to 1,647,129 and 3,556,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647,129 : 3,556,698 = 3,556,698 : x
2. Step 2: Convert to fraction form
   1,647,129/3,556,698 = 3,556,698/x
3. Step 3: Cross multiply
   1,647,129x = 3,556,698 × 3,556,698
4. Step 4: Simplify right side
   1,647,129x = 12,650,100,663,204
5. Step 5: Solve for x
   x = 12,650,100,663,204/1,647,129
6. Step 6: Final answer
   x = 7,680,091.03