Finding the Third Proportional to 876.38 and 1,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   876.38 : 1,870.88 = 1,870.88 : x
2. Step 2: Convert to fraction form
   876.38/1,870.88 = 1,870.88/x
3. Step 3: Cross multiply
   876.38x = 1,870.88 × 1,870.88
4. Step 4: Simplify right side
   876.38x = 3,500,173.27
5. Step 5: Solve for x
   x = 3,500,173.27/876.38
6. Step 6: Final answer
   x = 3,993.92