Finding the Third Proportional to 909.42 and 1,054.83

Step by Step Solution

1. Step 1: Write the proportion equation
   909.42 : 1,054.83 = 1,054.83 : x
2. Step 2: Convert to fraction form
   909.42/1,054.83 = 1,054.83/x
3. Step 3: Cross multiply
   909.42x = 1,054.83 × 1,054.83
4. Step 4: Simplify right side
   909.42x = 1,112,662.37
5. Step 5: Solve for x
   x = 1,112,662.37/909.42
6. Step 6: Final answer
   x = 1,223.48