Finding the Third Proportional to 1,281.09 and 2,801.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.09 : 2,801.81 = 2,801.81 : x
2. Step 2: Convert to fraction form
   1,281.09/2,801.81 = 2,801.81/x
3. Step 3: Cross multiply
   1,281.09x = 2,801.81 × 2,801.81
4. Step 4: Simplify right side
   1,281.09x = 7,850,153.29
5. Step 5: Solve for x
   x = 7,850,153.29/1,281.09
6. Step 6: Final answer
   x = 6,127.70