Finding the Third Proportional to 1,178.50 and 1,783

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178.50 : 1,783 = 1,783 : x
2. Step 2: Convert to fraction form
   1,178.50/1,783 = 1,783/x
3. Step 3: Cross multiply
   1,178.50x = 1,783 × 1,783
4. Step 4: Simplify right side
   1,178.50x = 3,179,089
5. Step 5: Solve for x
   x = 3,179,089/1,178.50
6. Step 6: Final answer
   x = 2,697.57