Finding the Third Proportional to 66,367.50 and 140,508

Step by Step Solution

1. Step 1: Write the proportion equation
   66,367.50 : 140,508 = 140,508 : x
2. Step 2: Convert to fraction form
   66,367.50/140,508 = 140,508/x
3. Step 3: Cross multiply
   66,367.50x = 140,508 × 140,508
4. Step 4: Simplify right side
   66,367.50x = 19,742,498,064
5. Step 5: Solve for x
   x = 19,742,498,064/66,367.50
6. Step 6: Final answer
   x = 297,472.38