Finding the Third Proportional to 28,734 and 60,780

Step by Step Solution

1. Step 1: Write the proportion equation
   28,734 : 60,780 = 60,780 : x
2. Step 2: Convert to fraction form
   28,734/60,780 = 60,780/x
3. Step 3: Cross multiply
   28,734x = 60,780 × 60,780
4. Step 4: Simplify right side
   28,734x = 3,694,208,400
5. Step 5: Solve for x
   x = 3,694,208,400/28,734
6. Step 6: Final answer
   x = 128,565.75