Finding the Third Proportional to 28,819.50 and 61,059

Step by Step Solution

1. Step 1: Write the proportion equation
   28,819.50 : 61,059 = 61,059 : x
2. Step 2: Convert to fraction form
   28,819.50/61,059 = 61,059/x
3. Step 3: Cross multiply
   28,819.50x = 61,059 × 61,059
4. Step 4: Simplify right side
   28,819.50x = 3,728,201,481
5. Step 5: Solve for x
   x = 3,728,201,481/28,819.50
6. Step 6: Final answer
   x = 129,363.85