Finding the Third Proportional to 20,697 and 31,200

Step by Step Solution

1. Step 1: Write the proportion equation
   20,697 : 31,200 = 31,200 : x
2. Step 2: Convert to fraction form
   20,697/31,200 = 31,200/x
3. Step 3: Cross multiply
   20,697x = 31,200 × 31,200
4. Step 4: Simplify right side
   20,697x = 973,440,000
5. Step 5: Solve for x
   x = 973,440,000/20,697
6. Step 6: Final answer
   x = 47,032.90