Finding the Third Proportional to 63,425 and 139,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,425 : 139,404.50 = 139,404.50 : x
2. Step 2: Convert to fraction form
   63,425/139,404.50 = 139,404.50/x
3. Step 3: Cross multiply
   63,425x = 139,404.50 × 139,404.50
4. Step 4: Simplify right side
   63,425x = 19,433,614,620.25
5. Step 5: Solve for x
   x = 19,433,614,620.25/63,425
6. Step 6: Final answer
   x = 306,403.07