Finding the Third Proportional to 1,051.50 and 2,856

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.50 : 2,856 = 2,856 : x
2. Step 2: Convert to fraction form
   1,051.50/2,856 = 2,856/x
3. Step 3: Cross multiply
   1,051.50x = 2,856 × 2,856
4. Step 4: Simplify right side
   1,051.50x = 8,156,736
5. Step 5: Solve for x
   x = 8,156,736/1,051.50
6. Step 6: Final answer
   x = 7,757.24