Finding the Third Proportional to 20,515 and 31,043

Step by Step Solution

1. Step 1: Write the proportion equation
   20,515 : 31,043 = 31,043 : x
2. Step 2: Convert to fraction form
   20,515/31,043 = 31,043/x
3. Step 3: Cross multiply
   20,515x = 31,043 × 31,043
4. Step 4: Simplify right side
   20,515x = 963,667,849
5. Step 5: Solve for x
   x = 963,667,849/20,515
6. Step 6: Final answer
   x = 46,973.82