Finding the Third Proportional to 1,288.88 and 1,940.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288.88 : 1,940.13 = 1,940.13 : x
2. Step 2: Convert to fraction form
   1,288.88/1,940.13 = 1,940.13/x
3. Step 3: Cross multiply
   1,288.88x = 1,940.13 × 1,940.13
4. Step 4: Simplify right side
   1,288.88x = 3,764,085.02
5. Step 5: Solve for x
   x = 3,764,085.02/1,288.88
6. Step 6: Final answer
   x = 2,920.44