Finding the Third Proportional to 72,296.30 and 108,028.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,296.30 : 108,028.69 = 108,028.69 : x
2. Step 2: Convert to fraction form
   72,296.30/108,028.69 = 108,028.69/x
3. Step 3: Cross multiply
   72,296.30x = 108,028.69 × 108,028.69
4. Step 4: Simplify right side
   72,296.30x = 11,670,197,322.97
5. Step 5: Solve for x
   x = 11,670,197,322.97/72,296.30
6. Step 6: Final answer
   x = 161,421.79