Finding the Third Proportional to 585.50 and 1,354

Step by Step Solution

1. Step 1: Write the proportion equation
   585.50 : 1,354 = 1,354 : x
2. Step 2: Convert to fraction form
   585.50/1,354 = 1,354/x
3. Step 3: Cross multiply
   585.50x = 1,354 × 1,354
4. Step 4: Simplify right side
   585.50x = 1,833,316
5. Step 5: Solve for x
   x = 1,833,316/585.50
6. Step 6: Final answer
   x = 3,131.20