Finding the Third Proportional to 1,215 and 1,883.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215 : 1,883.25 = 1,883.25 : x
2. Step 2: Convert to fraction form
   1,215/1,883.25 = 1,883.25/x
3. Step 3: Cross multiply
   1,215x = 1,883.25 × 1,883.25
4. Step 4: Simplify right side
   1,215x = 3,546,630.56
5. Step 5: Solve for x
   x = 3,546,630.56/1,215
6. Step 6: Final answer
   x = 2,919.04