Finding the Third Proportional to 1,281.45 and 1,870.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.45 : 1,870.91 = 1,870.91 : x
2. Step 2: Convert to fraction form
   1,281.45/1,870.91 = 1,870.91/x
3. Step 3: Cross multiply
   1,281.45x = 1,870.91 × 1,870.91
4. Step 4: Simplify right side
   1,281.45x = 3,500,304.81
5. Step 5: Solve for x
   x = 3,500,304.81/1,281.45
6. Step 6: Final answer
   x = 2,731.53