Finding the Third Proportional to 63,763.50 and 140,109

Step by Step Solution

1. Step 1: Write the proportion equation
   63,763.50 : 140,109 = 140,109 : x
2. Step 2: Convert to fraction form
   63,763.50/140,109 = 140,109/x
3. Step 3: Cross multiply
   63,763.50x = 140,109 × 140,109
4. Step 4: Simplify right side
   63,763.50x = 19,630,531,881
5. Step 5: Solve for x
   x = 19,630,531,881/63,763.50
6. Step 6: Final answer
   x = 307,864.72