Finding the Third Proportional to 1,011.25 and 2,108.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011.25 : 2,108.88 = 2,108.88 : x
2. Step 2: Convert to fraction form
   1,011.25/2,108.88 = 2,108.88/x
3. Step 3: Cross multiply
   1,011.25x = 2,108.88 × 2,108.88
4. Step 4: Simplify right side
   1,011.25x = 4,447,353.77
5. Step 5: Solve for x
   x = 4,447,353.77/1,011.25
6. Step 6: Final answer
   x = 4,397.88