Finding the Third Proportional to 939.94 and 1,976.63

Step by Step Solution

1. Step 1: Write the proportion equation
   939.94 : 1,976.63 = 1,976.63 : x
2. Step 2: Convert to fraction form
   939.94/1,976.63 = 1,976.63/x
3. Step 3: Cross multiply
   939.94x = 1,976.63 × 1,976.63
4. Step 4: Simplify right side
   939.94x = 3,907,046.39
5. Step 5: Solve for x
   x = 3,907,046.39/939.94
6. Step 6: Final answer
   x = 4,156.71