Finding the Third Proportional to 28,228 and 62,215

Step by Step Solution

1. Step 1: Write the proportion equation
   28,228 : 62,215 = 62,215 : x
2. Step 2: Convert to fraction form
   28,228/62,215 = 62,215/x
3. Step 3: Cross multiply
   28,228x = 62,215 × 62,215
4. Step 4: Simplify right side
   28,228x = 3,870,706,225
5. Step 5: Solve for x
   x = 3,870,706,225/28,228
6. Step 6: Final answer
   x = 137,122.94