Finding the Third Proportional to 947.25 and 1,389

Step by Step Solution

1. Step 1: Write the proportion equation
   947.25 : 1,389 = 1,389 : x
2. Step 2: Convert to fraction form
   947.25/1,389 = 1,389/x
3. Step 3: Cross multiply
   947.25x = 1,389 × 1,389
4. Step 4: Simplify right side
   947.25x = 1,929,321
5. Step 5: Solve for x
   x = 1,929,321/947.25
6. Step 6: Final answer
   x = 2,036.76