Finding the Third Proportional to 2,859 and 7,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859 : 7,054.50 = 7,054.50 : x
2. Step 2: Convert to fraction form
   2,859/7,054.50 = 7,054.50/x
3. Step 3: Cross multiply
   2,859x = 7,054.50 × 7,054.50
4. Step 4: Simplify right side
   2,859x = 49,765,970.25
5. Step 5: Solve for x
   x = 49,765,970.25/2,859
6. Step 6: Final answer
   x = 17,406.78