Finding the Third Proportional to 3,898,974 and 8,694,450

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898,974 : 8,694,450 = 8,694,450 : x
2. Step 2: Convert to fraction form
   3,898,974/8,694,450 = 8,694,450/x
3. Step 3: Cross multiply
   3,898,974x = 8,694,450 × 8,694,450
4. Step 4: Simplify right side
   3,898,974x = 75,593,460,802,500
5. Step 5: Solve for x
   x = 75,593,460,802,500/3,898,974
6. Step 6: Final answer
   x = 19,388,039.21