Finding the Third Proportional to 912.09 and 2,000.72

Step by Step Solution

1. Step 1: Write the proportion equation
   912.09 : 2,000.72 = 2,000.72 : x
2. Step 2: Convert to fraction form
   912.09/2,000.72 = 2,000.72/x
3. Step 3: Cross multiply
   912.09x = 2,000.72 × 2,000.72
4. Step 4: Simplify right side
   912.09x = 4,002,875.52
5. Step 5: Solve for x
   x = 4,002,875.52/912.09
6. Step 6: Final answer
   x = 4,388.67