Finding the Third Proportional to 399.56 and 938.06

Step by Step Solution

1. Step 1: Write the proportion equation
   399.56 : 938.06 = 938.06 : x
2. Step 2: Convert to fraction form
   399.56/938.06 = 938.06/x
3. Step 3: Cross multiply
   399.56x = 938.06 × 938.06
4. Step 4: Simplify right side
   399.56x = 879,961.25
5. Step 5: Solve for x
   x = 879,961.25/399.56
6. Step 6: Final answer
   x = 2,202.31