Finding the Third Proportional to 911.25 and 994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   911.25 : 994.50 = 994.50 : x
2. Step 2: Convert to fraction form
   911.25/994.50 = 994.50/x
3. Step 3: Cross multiply
   911.25x = 994.50 × 994.50
4. Step 4: Simplify right side
   911.25x = 989,030.25
5. Step 5: Solve for x
   x = 989,030.25/911.25
6. Step 6: Final answer
   x = 1,085.36