Finding the Third Proportional to 16,815 and 35,031

Step by Step Solution

1. Step 1: Write the proportion equation
   16,815 : 35,031 = 35,031 : x
2. Step 2: Convert to fraction form
   16,815/35,031 = 35,031/x
3. Step 3: Cross multiply
   16,815x = 35,031 × 35,031
4. Step 4: Simplify right side
   16,815x = 1,227,170,961
5. Step 5: Solve for x
   x = 1,227,170,961/16,815
6. Step 6: Final answer
   x = 72,980.73