Finding the Third Proportional to 610.31 and 930.38

Step by Step Solution

1. Step 1: Write the proportion equation
   610.31 : 930.38 = 930.38 : x
2. Step 2: Convert to fraction form
   610.31/930.38 = 930.38/x
3. Step 3: Cross multiply
   610.31x = 930.38 × 930.38
4. Step 4: Simplify right side
   610.31x = 865,597.64
5. Step 5: Solve for x
   x = 865,597.64/610.31
6. Step 6: Final answer
   x = 1,418.29