Finding the Third Proportional to 1,429.52 and 3,447.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.52 : 3,447.80 = 3,447.80 : x
2. Step 2: Convert to fraction form
   1,429.52/3,447.80 = 3,447.80/x
3. Step 3: Cross multiply
   1,429.52x = 3,447.80 × 3,447.80
4. Step 4: Simplify right side
   1,429.52x = 11,887,323.49
5. Step 5: Solve for x
   x = 11,887,323.49/1,429.52
6. Step 6: Final answer
   x = 8,315.58