Finding the Third Proportional to 63,817.50 and 140,676

Step by Step Solution

1. Step 1: Write the proportion equation
   63,817.50 : 140,676 = 140,676 : x
2. Step 2: Convert to fraction form
   63,817.50/140,676 = 140,676/x
3. Step 3: Cross multiply
   63,817.50x = 140,676 × 140,676
4. Step 4: Simplify right side
   63,817.50x = 19,789,736,976
5. Step 5: Solve for x
   x = 19,789,736,976/63,817.50
6. Step 6: Final answer
   x = 310,098.91