Finding the Third Proportional to 935.30 and 1,978.73

Step by Step Solution

1. Step 1: Write the proportion equation
   935.30 : 1,978.73 = 1,978.73 : x
2. Step 2: Convert to fraction form
   935.30/1,978.73 = 1,978.73/x
3. Step 3: Cross multiply
   935.30x = 1,978.73 × 1,978.73
4. Step 4: Simplify right side
   935.30x = 3,915,389.73
5. Step 5: Solve for x
   x = 3,915,389.73/935.30
6. Step 6: Final answer
   x = 4,186.25