Finding the Third Proportional to 130.31 and 304.69

Step by Step Solution

1. Step 1: Write the proportion equation
   130.31 : 304.69 = 304.69 : x
2. Step 2: Convert to fraction form
   130.31/304.69 = 304.69/x
3. Step 3: Cross multiply
   130.31x = 304.69 × 304.69
4. Step 4: Simplify right side
   130.31x = 92,834.47
5. Step 5: Solve for x
   x = 92,834.47/130.31
6. Step 6: Final answer
   x = 712.40