Finding the Third Proportional to 2,242,809 and 4,779,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,242,809 : 4,779,216 = 4,779,216 : x
2. Step 2: Convert to fraction form
   2,242,809/4,779,216 = 4,779,216/x
3. Step 3: Cross multiply
   2,242,809x = 4,779,216 × 4,779,216
4. Step 4: Simplify right side
   2,242,809x = 22,840,905,574,656
5. Step 5: Solve for x
   x = 22,840,905,574,656/2,242,809
6. Step 6: Final answer
   x = 10,184,061.85