Finding the Third Proportional to 9,390 and 20,031

Step by Step Solution

1. Step 1: Write the proportion equation
   9,390 : 20,031 = 20,031 : x
2. Step 2: Convert to fraction form
   9,390/20,031 = 20,031/x
3. Step 3: Cross multiply
   9,390x = 20,031 × 20,031
4. Step 4: Simplify right side
   9,390x = 401,240,961
5. Step 5: Solve for x
   x = 401,240,961/9,390
6. Step 6: Final answer
   x = 42,730.67