Finding the Third Proportional to 1,120.50 and 1,729.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.50 : 1,729.69 = 1,729.69 : x
2. Step 2: Convert to fraction form
   1,120.50/1,729.69 = 1,729.69/x
3. Step 3: Cross multiply
   1,120.50x = 1,729.69 × 1,729.69
4. Step 4: Simplify right side
   1,120.50x = 2,991,818.85
5. Step 5: Solve for x
   x = 2,991,818.85/1,120.50
6. Step 6: Final answer
   x = 2,670.07