Finding the Third Proportional to 63,808 and 139,886

Step by Step Solution

1. Step 1: Write the proportion equation
   63,808 : 139,886 = 139,886 : x
2. Step 2: Convert to fraction form
   63,808/139,886 = 139,886/x
3. Step 3: Cross multiply
   63,808x = 139,886 × 139,886
4. Step 4: Simplify right side
   63,808x = 19,568,092,996
5. Step 5: Solve for x
   x = 19,568,092,996/63,808
6. Step 6: Final answer
   x = 306,671.47