Finding the Third Proportional to 199.34 and 435.69

Step by Step Solution

1. Step 1: Write the proportion equation
   199.34 : 435.69 = 435.69 : x
2. Step 2: Convert to fraction form
   199.34/435.69 = 435.69/x
3. Step 3: Cross multiply
   199.34x = 435.69 × 435.69
4. Step 4: Simplify right side
   199.34x = 189,827.00
5. Step 5: Solve for x
   x = 189,827.00/199.34
6. Step 6: Final answer
   x = 952.30