Finding the Third Proportional to 418.92 and 915.89

Step by Step Solution

1. Step 1: Write the proportion equation
   418.92 : 915.89 = 915.89 : x
2. Step 2: Convert to fraction form
   418.92/915.89 = 915.89/x
3. Step 3: Cross multiply
   418.92x = 915.89 × 915.89
4. Step 4: Simplify right side
   418.92x = 838,855.64
5. Step 5: Solve for x
   x = 838,855.64/418.92
6. Step 6: Final answer
   x = 2,002.42