Finding the Third Proportional to 14,123 and 30,420

Step by Step Solution

1. Step 1: Write the proportion equation
   14,123 : 30,420 = 30,420 : x
2. Step 2: Convert to fraction form
   14,123/30,420 = 30,420/x
3. Step 3: Cross multiply
   14,123x = 30,420 × 30,420
4. Step 4: Simplify right side
   14,123x = 925,376,400
5. Step 5: Solve for x
   x = 925,376,400/14,123
6. Step 6: Final answer
   x = 65,522.65