Finding the Third Proportional to 67,518.56 and 146,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,518.56 : 146,488.50 = 146,488.50 : x
2. Step 2: Convert to fraction form
   67,518.56/146,488.50 = 146,488.50/x
3. Step 3: Cross multiply
   67,518.56x = 146,488.50 × 146,488.50
4. Step 4: Simplify right side
   67,518.56x = 21,458,880,632.25
5. Step 5: Solve for x
   x = 21,458,880,632.25/67,518.56
6. Step 6: Final answer
   x = 317,821.94