Finding the Third Proportional to 1,629,831 and 3,540,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629,831 : 3,540,139 = 3,540,139 : x
2. Step 2: Convert to fraction form
   1,629,831/3,540,139 = 3,540,139/x
3. Step 3: Cross multiply
   1,629,831x = 3,540,139 × 3,540,139
4. Step 4: Simplify right side
   1,629,831x = 12,532,584,139,321
5. Step 5: Solve for x
   x = 12,532,584,139,321/1,629,831
6. Step 6: Final answer
   x = 7,689,499.18