Finding the Third Proportional to 384.94 and 615.38

Step by Step Solution

1. Step 1: Write the proportion equation
   384.94 : 615.38 = 615.38 : x
2. Step 2: Convert to fraction form
   384.94/615.38 = 615.38/x
3. Step 3: Cross multiply
   384.94x = 615.38 × 615.38
4. Step 4: Simplify right side
   384.94x = 378,686.39
5. Step 5: Solve for x
   x = 378,686.39/384.94
6. Step 6: Final answer
   x = 983.76