Finding the Third Proportional to 1,906,168 and 4,191,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906,168 : 4,191,408 = 4,191,408 : x
2. Step 2: Convert to fraction form
   1,906,168/4,191,408 = 4,191,408/x
3. Step 3: Cross multiply
   1,906,168x = 4,191,408 × 4,191,408
4. Step 4: Simplify right side
   1,906,168x = 17,567,901,022,464
5. Step 5: Solve for x
   x = 17,567,901,022,464/1,906,168
6. Step 6: Final answer
   x = 9,216,344.53