Finding the Third Proportional to 30,570 and 63,105

Step by Step Solution

1. Step 1: Write the proportion equation
   30,570 : 63,105 = 63,105 : x
2. Step 2: Convert to fraction form
   30,570/63,105 = 63,105/x
3. Step 3: Cross multiply
   30,570x = 63,105 × 63,105
4. Step 4: Simplify right side
   30,570x = 3,982,241,025
5. Step 5: Solve for x
   x = 3,982,241,025/30,570
6. Step 6: Final answer
   x = 130,266.31