Finding the Third Proportional to 1,681,180 and 3,648,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,180 : 3,648,128 = 3,648,128 : x
2. Step 2: Convert to fraction form
   1,681,180/3,648,128 = 3,648,128/x
3. Step 3: Cross multiply
   1,681,180x = 3,648,128 × 3,648,128
4. Step 4: Simplify right side
   1,681,180x = 13,308,837,904,384
5. Step 5: Solve for x
   x = 13,308,837,904,384/1,681,180
6. Step 6: Final answer
   x = 7,916,367.02