Finding the Third Proportional to 415.41 and 987.89

Step by Step Solution

1. Step 1: Write the proportion equation
   415.41 : 987.89 = 987.89 : x
2. Step 2: Convert to fraction form
   415.41/987.89 = 987.89/x
3. Step 3: Cross multiply
   415.41x = 987.89 × 987.89
4. Step 4: Simplify right side
   415.41x = 975,927.89
5. Step 5: Solve for x
   x = 975,927.89/415.41
6. Step 6: Final answer
   x = 2,349.33