Finding the Third Proportional to 1,010.25 and 1,215.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.25 : 1,215.28 = 1,215.28 : x
2. Step 2: Convert to fraction form
   1,010.25/1,215.28 = 1,215.28/x
3. Step 3: Cross multiply
   1,010.25x = 1,215.28 × 1,215.28
4. Step 4: Simplify right side
   1,010.25x = 1,476,908.52
5. Step 5: Solve for x
   x = 1,476,908.52/1,010.25
6. Step 6: Final answer
   x = 1,461.92