Finding the Third Proportional to 467.31 and 991.56

Step by Step Solution

1. Step 1: Write the proportion equation
   467.31 : 991.56 = 991.56 : x
2. Step 2: Convert to fraction form
   467.31/991.56 = 991.56/x
3. Step 3: Cross multiply
   467.31x = 991.56 × 991.56
4. Step 4: Simplify right side
   467.31x = 983,196.19
5. Step 5: Solve for x
   x = 983,196.19/467.31
6. Step 6: Final answer
   x = 2,103.94