Finding the Third Proportional to 30,122 and 63,638

Step by Step Solution

1. Step 1: Write the proportion equation
   30,122 : 63,638 = 63,638 : x
2. Step 2: Convert to fraction form
   30,122/63,638 = 63,638/x
3. Step 3: Cross multiply
   30,122x = 63,638 × 63,638
4. Step 4: Simplify right side
   30,122x = 4,049,795,044
5. Step 5: Solve for x
   x = 4,049,795,044/30,122
6. Step 6: Final answer
   x = 134,446.42