Finding the Third Proportional to 2,285,906 and 4,978,180

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285,906 : 4,978,180 = 4,978,180 : x
2. Step 2: Convert to fraction form
   2,285,906/4,978,180 = 4,978,180/x
3. Step 3: Cross multiply
   2,285,906x = 4,978,180 × 4,978,180
4. Step 4: Simplify right side
   2,285,906x = 24,782,276,112,400
5. Step 5: Solve for x
   x = 24,782,276,112,400/2,285,906
6. Step 6: Final answer
   x = 10,841,336.48