Finding the Third Proportional to 2,109,828 and 4,649,928

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,828 : 4,649,928 = 4,649,928 : x
2. Step 2: Convert to fraction form
   2,109,828/4,649,928 = 4,649,928/x
3. Step 3: Cross multiply
   2,109,828x = 4,649,928 × 4,649,928
4. Step 4: Simplify right side
   2,109,828x = 21,621,830,405,184
5. Step 5: Solve for x
   x = 21,621,830,405,184/2,109,828
6. Step 6: Final answer
   x = 10,248,148.38