Finding the Third Proportional to 2,112,448 and 3,178,777

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,448 : 3,178,777 = 3,178,777 : x
2. Step 2: Convert to fraction form
   2,112,448/3,178,777 = 3,178,777/x
3. Step 3: Cross multiply
   2,112,448x = 3,178,777 × 3,178,777
4. Step 4: Simplify right side
   2,112,448x = 10,104,623,215,729
5. Step 5: Solve for x
   x = 10,104,623,215,729/2,112,448
6. Step 6: Final answer
   x = 4,783,371.34