Finding the Third Proportional to 484.28 and 729.89

Step by Step Solution

1. Step 1: Write the proportion equation
   484.28 : 729.89 = 729.89 : x
2. Step 2: Convert to fraction form
   484.28/729.89 = 729.89/x
3. Step 3: Cross multiply
   484.28x = 729.89 × 729.89
4. Step 4: Simplify right side
   484.28x = 532,739.26
5. Step 5: Solve for x
   x = 532,739.26/484.28
6. Step 6: Final answer
   x = 1,100.07