Finding the Third Proportional to 870.50 and 1,630

Step by Step Solution

1. Step 1: Write the proportion equation
   870.50 : 1,630 = 1,630 : x
2. Step 2: Convert to fraction form
   870.50/1,630 = 1,630/x
3. Step 3: Cross multiply
   870.50x = 1,630 × 1,630
4. Step 4: Simplify right side
   870.50x = 2,656,900
5. Step 5: Solve for x
   x = 2,656,900/870.50
6. Step 6: Final answer
   x = 3,052.15