Finding the Third Proportional to 1,091.91 and 2,356.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.91 : 2,356.69 = 2,356.69 : x
2. Step 2: Convert to fraction form
   1,091.91/2,356.69 = 2,356.69/x
3. Step 3: Cross multiply
   1,091.91x = 2,356.69 × 2,356.69
4. Step 4: Simplify right side
   1,091.91x = 5,553,975.97
5. Step 5: Solve for x
   x = 5,553,975.97/1,091.91
6. Step 6: Final answer
   x = 5,086.50