Finding the Third Proportional to 1,281 and 1,881.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281 : 1,881.50 = 1,881.50 : x
2. Step 2: Convert to fraction form
   1,281/1,881.50 = 1,881.50/x
3. Step 3: Cross multiply
   1,281x = 1,881.50 × 1,881.50
4. Step 4: Simplify right side
   1,281x = 3,540,042.25
5. Step 5: Solve for x
   x = 3,540,042.25/1,281
6. Step 6: Final answer
   x = 2,763.50