Finding the Third Proportional to 64,882 and 139,889

Step by Step Solution

1. Step 1: Write the proportion equation
   64,882 : 139,889 = 139,889 : x
2. Step 2: Convert to fraction form
   64,882/139,889 = 139,889/x
3. Step 3: Cross multiply
   64,882x = 139,889 × 139,889
4. Step 4: Simplify right side
   64,882x = 19,568,932,321
5. Step 5: Solve for x
   x = 19,568,932,321/64,882
6. Step 6: Final answer
   x = 301,608.03