Finding the Third Proportional to 199,665 and 434,319.75

Step by Step Solution

1. Step 1: Write the proportion equation
   199,665 : 434,319.75 = 434,319.75 : x
2. Step 2: Convert to fraction form
   199,665/434,319.75 = 434,319.75/x
3. Step 3: Cross multiply
   199,665x = 434,319.75 × 434,319.75
4. Step 4: Simplify right side
   199,665x = 188,633,645,240.06
5. Step 5: Solve for x
   x = 188,633,645,240.06/199,665
6. Step 6: Final answer
   x = 944,750.68