Finding the Third Proportional to 1,238.63 and 1,928.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.63 : 1,928.81 = 1,928.81 : x
2. Step 2: Convert to fraction form
   1,238.63/1,928.81 = 1,928.81/x
3. Step 3: Cross multiply
   1,238.63x = 1,928.81 × 1,928.81
4. Step 4: Simplify right side
   1,238.63x = 3,720,317.66
5. Step 5: Solve for x
   x = 3,720,317.66/1,238.63
6. Step 6: Final answer
   x = 3,003.59