Finding the Third Proportional to 1,682,638 and 3,649,180

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682,638 : 3,649,180 = 3,649,180 : x
2. Step 2: Convert to fraction form
   1,682,638/3,649,180 = 3,649,180/x
3. Step 3: Cross multiply
   1,682,638x = 3,649,180 × 3,649,180
4. Step 4: Simplify right side
   1,682,638x = 13,316,514,672,400
5. Step 5: Solve for x
   x = 13,316,514,672,400/1,682,638
6. Step 6: Final answer
   x = 7,914,069.85