Finding the Third Proportional to 28,218 and 60,680

Step by Step Solution

1. Step 1: Write the proportion equation
   28,218 : 60,680 = 60,680 : x
2. Step 2: Convert to fraction form
   28,218/60,680 = 60,680/x
3. Step 3: Cross multiply
   28,218x = 60,680 × 60,680
4. Step 4: Simplify right side
   28,218x = 3,682,062,400
5. Step 5: Solve for x
   x = 3,682,062,400/28,218
6. Step 6: Final answer
   x = 130,486.30