Finding the Third Proportional to 1,780,656 and 4,199,211

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,656 : 4,199,211 = 4,199,211 : x
2. Step 2: Convert to fraction form
   1,780,656/4,199,211 = 4,199,211/x
3. Step 3: Cross multiply
   1,780,656x = 4,199,211 × 4,199,211
4. Step 4: Simplify right side
   1,780,656x = 17,633,373,022,521
5. Step 5: Solve for x
   x = 17,633,373,022,521/1,780,656
6. Step 6: Final answer
   x = 9,902,739.79