Finding the Third Proportional to 63,467.44 and 139,390.31

Step by Step Solution

1. Step 1: Write the proportion equation
   63,467.44 : 139,390.31 = 139,390.31 : x
2. Step 2: Convert to fraction form
   63,467.44/139,390.31 = 139,390.31/x
3. Step 3: Cross multiply
   63,467.44x = 139,390.31 × 139,390.31
4. Step 4: Simplify right side
   63,467.44x = 19,429,659,218.85
5. Step 5: Solve for x
   x = 19,429,659,218.85/63,467.44
6. Step 6: Final answer
   x = 306,135.87