Finding the Third Proportional to 909.50 and 1,992

Step by Step Solution

1. Step 1: Write the proportion equation
   909.50 : 1,992 = 1,992 : x
2. Step 2: Convert to fraction form
   909.50/1,992 = 1,992/x
3. Step 3: Cross multiply
   909.50x = 1,992 × 1,992
4. Step 4: Simplify right side
   909.50x = 3,968,064
5. Step 5: Solve for x
   x = 3,968,064/909.50
6. Step 6: Final answer
   x = 4,362.91