Finding the Third Proportional to 1,661.13 and 3,091.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.13 : 3,091.61 = 3,091.61 : x
2. Step 2: Convert to fraction form
   1,661.13/3,091.61 = 3,091.61/x
3. Step 3: Cross multiply
   1,661.13x = 3,091.61 × 3,091.61
4. Step 4: Simplify right side
   1,661.13x = 9,558,024.37
5. Step 5: Solve for x
   x = 9,558,024.37/1,661.13
6. Step 6: Final answer
   x = 5,753.92