Finding the Third Proportional to 1,391.63 and 3,236.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391.63 : 3,236.06 = 3,236.06 : x
2. Step 2: Convert to fraction form
   1,391.63/3,236.06 = 3,236.06/x
3. Step 3: Cross multiply
   1,391.63x = 3,236.06 × 3,236.06
4. Step 4: Simplify right side
   1,391.63x = 10,472,100.50
5. Step 5: Solve for x
   x = 10,472,100.50/1,391.63
6. Step 6: Final answer
   x = 7,525.09