Finding the Third Proportional to 199,408.50 and 426,843

Step by Step Solution

1. Step 1: Write the proportion equation
   199,408.50 : 426,843 = 426,843 : x
2. Step 2: Convert to fraction form
   199,408.50/426,843 = 426,843/x
3. Step 3: Cross multiply
   199,408.50x = 426,843 × 426,843
4. Step 4: Simplify right side
   199,408.50x = 182,194,946,649
5. Step 5: Solve for x
   x = 182,194,946,649/199,408.50
6. Step 6: Final answer
   x = 913,676.93