Finding the Third Proportional to 31,915.75 and 50,513.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,915.75 : 50,513.75 = 50,513.75 : x
2. Step 2: Convert to fraction form
   31,915.75/50,513.75 = 50,513.75/x
3. Step 3: Cross multiply
   31,915.75x = 50,513.75 × 50,513.75
4. Step 4: Simplify right side
   31,915.75x = 2,551,638,939.06
5. Step 5: Solve for x
   x = 2,551,638,939.06/31,915.75
6. Step 6: Final answer
   x = 79,949.21