Finding the Third Proportional to 989.50 and 2,066

Step by Step Solution

1. Step 1: Write the proportion equation
   989.50 : 2,066 = 2,066 : x
2. Step 2: Convert to fraction form
   989.50/2,066 = 2,066/x
3. Step 3: Cross multiply
   989.50x = 2,066 × 2,066
4. Step 4: Simplify right side
   989.50x = 4,268,356
5. Step 5: Solve for x
   x = 4,268,356/989.50
6. Step 6: Final answer
   x = 4,313.65