Finding the Third Proportional to 1,225.69 and 1,708.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.69 : 1,708.31 = 1,708.31 : x
2. Step 2: Convert to fraction form
   1,225.69/1,708.31 = 1,708.31/x
3. Step 3: Cross multiply
   1,225.69x = 1,708.31 × 1,708.31
4. Step 4: Simplify right side
   1,225.69x = 2,918,331.60
5. Step 5: Solve for x
   x = 2,918,331.60/1,225.69
6. Step 6: Final answer
   x = 2,380.98