Finding the Third Proportional to 72,558.28 and 109,932.19

Step by Step Solution

1. Step 1: Write the proportion equation
   72,558.28 : 109,932.19 = 109,932.19 : x
2. Step 2: Convert to fraction form
   72,558.28/109,932.19 = 109,932.19/x
3. Step 3: Cross multiply
   72,558.28x = 109,932.19 × 109,932.19
4. Step 4: Simplify right side
   72,558.28x = 12,085,085,848.54
5. Step 5: Solve for x
   x = 12,085,085,848.54/72,558.28
6. Step 6: Final answer
   x = 166,556.95