Finding the Third Proportional to 63,769.78 and 139,020.05

Step by Step Solution

1. Step 1: Write the proportion equation
   63,769.78 : 139,020.05 = 139,020.05 : x
2. Step 2: Convert to fraction form
   63,769.78/139,020.05 = 139,020.05/x
3. Step 3: Cross multiply
   63,769.78x = 139,020.05 × 139,020.05
4. Step 4: Simplify right side
   63,769.78x = 19,326,573,433.13
5. Step 5: Solve for x
   x = 19,326,573,433.13/63,769.78
6. Step 6: Final answer
   x = 303,067.90