Finding the Third Proportional to 1,279.50 and 1,956

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.50 : 1,956 = 1,956 : x
2. Step 2: Convert to fraction form
   1,279.50/1,956 = 1,956/x
3. Step 3: Cross multiply
   1,279.50x = 1,956 × 1,956
4. Step 4: Simplify right side
   1,279.50x = 3,825,936
5. Step 5: Solve for x
   x = 3,825,936/1,279.50
6. Step 6: Final answer
   x = 2,990.18