Finding the Third Proportional to 604.78 and 904.83

Step by Step Solution

1. Step 1: Write the proportion equation
   604.78 : 904.83 = 904.83 : x
2. Step 2: Convert to fraction form
   604.78/904.83 = 904.83/x
3. Step 3: Cross multiply
   604.78x = 904.83 × 904.83
4. Step 4: Simplify right side
   604.78x = 818,713.94
5. Step 5: Solve for x
   x = 818,713.94/604.78
6. Step 6: Final answer
   x = 1,353.74