Finding the Third Proportional to 976.43 and 2,131.47

Step by Step Solution

1. Step 1: Write the proportion equation
   976.43 : 2,131.47 = 2,131.47 : x
2. Step 2: Convert to fraction form
   976.43/2,131.47 = 2,131.47/x
3. Step 3: Cross multiply
   976.43x = 2,131.47 × 2,131.47
4. Step 4: Simplify right side
   976.43x = 4,543,167.36
5. Step 5: Solve for x
   x = 4,543,167.36/976.43
6. Step 6: Final answer
   x = 4,652.84