Finding the Third Proportional to 304.50 and 482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   304.50 : 482.50 = 482.50 : x
2. Step 2: Convert to fraction form
   304.50/482.50 = 482.50/x
3. Step 3: Cross multiply
   304.50x = 482.50 × 482.50
4. Step 4: Simplify right side
   304.50x = 232,806.25
5. Step 5: Solve for x
   x = 232,806.25/304.50
6. Step 6: Final answer
   x = 764.55