Finding the Third Proportional to 1,725.50 and 3,684.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.50 : 3,684.50 = 3,684.50 : x
2. Step 2: Convert to fraction form
   1,725.50/3,684.50 = 3,684.50/x
3. Step 3: Cross multiply
   1,725.50x = 3,684.50 × 3,684.50
4. Step 4: Simplify right side
   1,725.50x = 13,575,540.25
5. Step 5: Solve for x
   x = 13,575,540.25/1,725.50
6. Step 6: Final answer
   x = 7,867.60