Finding the Third Proportional to 66,046.50 and 142,617

Step by Step Solution

1. Step 1: Write the proportion equation
   66,046.50 : 142,617 = 142,617 : x
2. Step 2: Convert to fraction form
   66,046.50/142,617 = 142,617/x
3. Step 3: Cross multiply
   66,046.50x = 142,617 × 142,617
4. Step 4: Simplify right side
   66,046.50x = 20,339,608,689
5. Step 5: Solve for x
   x = 20,339,608,689/66,046.50
6. Step 6: Final answer
   x = 307,958.92