Finding the Third Proportional to 573.19 and 836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   573.19 : 836.72 = 836.72 : x
2. Step 2: Convert to fraction form
   573.19/836.72 = 836.72/x
3. Step 3: Cross multiply
   573.19x = 836.72 × 836.72
4. Step 4: Simplify right side
   573.19x = 700,098.27
5. Step 5: Solve for x
   x = 700,098.27/573.19
6. Step 6: Final answer
   x = 1,221.41