Finding the Third Proportional to 64,945 and 139,922

Step by Step Solution

1. Step 1: Write the proportion equation
   64,945 : 139,922 = 139,922 : x
2. Step 2: Convert to fraction form
   64,945/139,922 = 139,922/x
3. Step 3: Cross multiply
   64,945x = 139,922 × 139,922
4. Step 4: Simplify right side
   64,945x = 19,578,166,084
5. Step 5: Solve for x
   x = 19,578,166,084/64,945
6. Step 6: Final answer
   x = 301,457.63