Finding the Third Proportional to 1,392.82 and 3,200.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.82 : 3,200.13 = 3,200.13 : x
2. Step 2: Convert to fraction form
   1,392.82/3,200.13 = 3,200.13/x
3. Step 3: Cross multiply
   1,392.82x = 3,200.13 × 3,200.13
4. Step 4: Simplify right side
   1,392.82x = 10,240,850.02
5. Step 5: Solve for x
   x = 10,240,850.02/1,392.82
6. Step 6: Final answer
   x = 7,352.60