Finding the Third Proportional to 72,656 and 109,401

Step by Step Solution

1. Step 1: Write the proportion equation
   72,656 : 109,401 = 109,401 : x
2. Step 2: Convert to fraction form
   72,656/109,401 = 109,401/x
3. Step 3: Cross multiply
   72,656x = 109,401 × 109,401
4. Step 4: Simplify right side
   72,656x = 11,968,578,801
5. Step 5: Solve for x
   x = 11,968,578,801/72,656
6. Step 6: Final answer
   x = 164,729.39