Finding the Third Proportional to 28,618 and 63,380

Step by Step Solution

1. Step 1: Write the proportion equation
   28,618 : 63,380 = 63,380 : x
2. Step 2: Convert to fraction form
   28,618/63,380 = 63,380/x
3. Step 3: Cross multiply
   28,618x = 63,380 × 63,380
4. Step 4: Simplify right side
   28,618x = 4,017,024,400
5. Step 5: Solve for x
   x = 4,017,024,400/28,618
6. Step 6: Final answer
   x = 140,367.06