Finding the Third Proportional to 104,836 and 139,673

Step by Step Solution

1. Step 1: Write the proportion equation
   104,836 : 139,673 = 139,673 : x
2. Step 2: Convert to fraction form
   104,836/139,673 = 139,673/x
3. Step 3: Cross multiply
   104,836x = 139,673 × 139,673
4. Step 4: Simplify right side
   104,836x = 19,508,546,929
5. Step 5: Solve for x
   x = 19,508,546,929/104,836
6. Step 6: Final answer
   x = 186,086.33