Finding the Third Proportional to 30,676.50 and 67,059.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,676.50 : 67,059.75 = 67,059.75 : x
2. Step 2: Convert to fraction form
   30,676.50/67,059.75 = 67,059.75/x
3. Step 3: Cross multiply
   30,676.50x = 67,059.75 × 67,059.75
4. Step 4: Simplify right side
   30,676.50x = 4,497,010,070.06
5. Step 5: Solve for x
   x = 4,497,010,070.06/30,676.50
6. Step 6: Final answer
   x = 146,594.63