Finding the Third Proportional to 308.81 and 483.47

Step by Step Solution

1. Step 1: Write the proportion equation
   308.81 : 483.47 = 483.47 : x
2. Step 2: Convert to fraction form
   308.81/483.47 = 483.47/x
3. Step 3: Cross multiply
   308.81x = 483.47 × 483.47
4. Step 4: Simplify right side
   308.81x = 233,742.03
5. Step 5: Solve for x
   x = 233,742.03/308.81
6. Step 6: Final answer
   x = 756.91