Finding the Third Proportional to 314.30 and 651.38

Step by Step Solution

1. Step 1: Write the proportion equation
   314.30 : 651.38 = 651.38 : x
2. Step 2: Convert to fraction form
   314.30/651.38 = 651.38/x
3. Step 3: Cross multiply
   314.30x = 651.38 × 651.38
4. Step 4: Simplify right side
   314.30x = 424,289.39
5. Step 5: Solve for x
   x = 424,289.39/314.30
6. Step 6: Final answer
   x = 1,349.96