Finding the Third Proportional to 63,910 and 139,484

Step by Step Solution

1. Step 1: Write the proportion equation
   63,910 : 139,484 = 139,484 : x
2. Step 2: Convert to fraction form
   63,910/139,484 = 139,484/x
3. Step 3: Cross multiply
   63,910x = 139,484 × 139,484
4. Step 4: Simplify right side
   63,910x = 19,455,786,256
5. Step 5: Solve for x
   x = 19,455,786,256/63,910
6. Step 6: Final answer
   x = 304,424.76