Finding the Third Proportional to 2,808,888 and 4,242,851

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808,888 : 4,242,851 = 4,242,851 : x
2. Step 2: Convert to fraction form
   2,808,888/4,242,851 = 4,242,851/x
3. Step 3: Cross multiply
   2,808,888x = 4,242,851 × 4,242,851
4. Step 4: Simplify right side
   2,808,888x = 18,001,784,608,201
5. Step 5: Solve for x
   x = 18,001,784,608,201/2,808,888
6. Step 6: Final answer
   x = 6,408,865.22