Finding the Third Proportional to 72,180 and 103,973

Step by Step Solution

1. Step 1: Write the proportion equation
   72,180 : 103,973 = 103,973 : x
2. Step 2: Convert to fraction form
   72,180/103,973 = 103,973/x
3. Step 3: Cross multiply
   72,180x = 103,973 × 103,973
4. Step 4: Simplify right side
   72,180x = 10,810,384,729
5. Step 5: Solve for x
   x = 10,810,384,729/72,180
6. Step 6: Final answer
   x = 149,769.81