Finding the Third Proportional to 2,859,378 and 4,356,150

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859,378 : 4,356,150 = 4,356,150 : x
2. Step 2: Convert to fraction form
   2,859,378/4,356,150 = 4,356,150/x
3. Step 3: Cross multiply
   2,859,378x = 4,356,150 × 4,356,150
4. Step 4: Simplify right side
   2,859,378x = 18,976,042,822,500
5. Step 5: Solve for x
   x = 18,976,042,822,500/2,859,378
6. Step 6: Final answer
   x = 6,636,423.31