Finding the Third Proportional to 28,608 and 63,030

Step by Step Solution

1. Step 1: Write the proportion equation
   28,608 : 63,030 = 63,030 : x
2. Step 2: Convert to fraction form
   28,608/63,030 = 63,030/x
3. Step 3: Cross multiply
   28,608x = 63,030 × 63,030
4. Step 4: Simplify right side
   28,608x = 3,972,780,900
5. Step 5: Solve for x
   x = 3,972,780,900/28,608
6. Step 6: Final answer
   x = 138,869.58