Finding the Third Proportional to 868.38 and 1,354

Step by Step Solution

1. Step 1: Write the proportion equation
   868.38 : 1,354 = 1,354 : x
2. Step 2: Convert to fraction form
   868.38/1,354 = 1,354/x
3. Step 3: Cross multiply
   868.38x = 1,354 × 1,354
4. Step 4: Simplify right side
   868.38x = 1,833,316
5. Step 5: Solve for x
   x = 1,833,316/868.38
6. Step 6: Final answer
   x = 2,111.20