Finding the Third Proportional to 1,010.81 and 1,236.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.81 : 1,236.09 = 1,236.09 : x
2. Step 2: Convert to fraction form
   1,010.81/1,236.09 = 1,236.09/x
3. Step 3: Cross multiply
   1,010.81x = 1,236.09 × 1,236.09
4. Step 4: Simplify right side
   1,010.81x = 1,527,927.76
5. Step 5: Solve for x
   x = 1,527,927.76/1,010.81
6. Step 6: Final answer
   x = 1,511.58