Finding the Third Proportional to 2,111.25 and 4,358.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.25 : 4,358.25 = 4,358.25 : x
2. Step 2: Convert to fraction form
   2,111.25/4,358.25 = 4,358.25/x
3. Step 3: Cross multiply
   2,111.25x = 4,358.25 × 4,358.25
4. Step 4: Simplify right side
   2,111.25x = 18,994,343.06
5. Step 5: Solve for x
   x = 18,994,343.06/2,111.25
6. Step 6: Final answer
   x = 8,996.73