Finding the Third Proportional to 28,560 and 61,980

Step by Step Solution

1. Step 1: Write the proportion equation
   28,560 : 61,980 = 61,980 : x
2. Step 2: Convert to fraction form
   28,560/61,980 = 61,980/x
3. Step 3: Cross multiply
   28,560x = 61,980 × 61,980
4. Step 4: Simplify right side
   28,560x = 3,841,520,400
5. Step 5: Solve for x
   x = 3,841,520,400/28,560
6. Step 6: Final answer
   x = 134,507.02