Finding the Third Proportional to 63,718 and 139,098

Step by Step Solution

1. Step 1: Write the proportion equation
   63,718 : 139,098 = 139,098 : x
2. Step 2: Convert to fraction form
   63,718/139,098 = 139,098/x
3. Step 3: Cross multiply
   63,718x = 139,098 × 139,098
4. Step 4: Simplify right side
   63,718x = 19,348,253,604
5. Step 5: Solve for x
   x = 19,348,253,604/63,718
6. Step 6: Final answer
   x = 303,654.44