Finding the Third Proportional to 445.25 and 1,054.63

Step by Step Solution

1. Step 1: Write the proportion equation
   445.25 : 1,054.63 = 1,054.63 : x
2. Step 2: Convert to fraction form
   445.25/1,054.63 = 1,054.63/x
3. Step 3: Cross multiply
   445.25x = 1,054.63 × 1,054.63
4. Step 4: Simplify right side
   445.25x = 1,112,233.89
5. Step 5: Solve for x
   x = 1,112,233.89/445.25
6. Step 6: Final answer
   x = 2,498.00