Finding the Third Proportional to 1,849,120 and 3,978,176

Step by Step Solution

1. Step 1: Write the proportion equation
   1,849,120 : 3,978,176 = 3,978,176 : x
2. Step 2: Convert to fraction form
   1,849,120/3,978,176 = 3,978,176/x
3. Step 3: Cross multiply
   1,849,120x = 3,978,176 × 3,978,176
4. Step 4: Simplify right side
   1,849,120x = 15,825,884,286,976
5. Step 5: Solve for x
   x = 15,825,884,286,976/1,849,120
6. Step 6: Final answer
   x = 8,558,603.17