Finding the Third Proportional to 64,809 and 139,014

Step by Step Solution

1. Step 1: Write the proportion equation
   64,809 : 139,014 = 139,014 : x
2. Step 2: Convert to fraction form
   64,809/139,014 = 139,014/x
3. Step 3: Cross multiply
   64,809x = 139,014 × 139,014
4. Step 4: Simplify right side
   64,809x = 19,324,892,196
5. Step 5: Solve for x
   x = 19,324,892,196/64,809
6. Step 6: Final answer
   x = 298,182.23