Finding the Third Proportional to 85,433.25 and 199,610.63

Step by Step Solution

1. Step 1: Write the proportion equation
   85,433.25 : 199,610.63 = 199,610.63 : x
2. Step 2: Convert to fraction form
   85,433.25/199,610.63 = 199,610.63/x
3. Step 3: Cross multiply
   85,433.25x = 199,610.63 × 199,610.63
4. Step 4: Simplify right side
   85,433.25x = 39,844,401,612.89
5. Step 5: Solve for x
   x = 39,844,401,612.89/85,433.25
6. Step 6: Final answer
   x = 466,380.50