Finding the Third Proportional to 1,136.06 and 1,240.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.06 : 1,240.69 = 1,240.69 : x
2. Step 2: Convert to fraction form
   1,136.06/1,240.69 = 1,240.69/x
3. Step 3: Cross multiply
   1,136.06x = 1,240.69 × 1,240.69
4. Step 4: Simplify right side
   1,136.06x = 1,539,305.47
5. Step 5: Solve for x
   x = 1,539,305.47/1,136.06
6. Step 6: Final answer
   x = 1,354.95