Finding the Third Proportional to 72,554.88 and 109,929.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,554.88 : 109,929.59 = 109,929.59 : x
2. Step 2: Convert to fraction form
   72,554.88/109,929.59 = 109,929.59/x
3. Step 3: Cross multiply
   72,554.88x = 109,929.59 × 109,929.59
4. Step 4: Simplify right side
   72,554.88x = 12,084,515,582.04
5. Step 5: Solve for x
   x = 12,084,515,582.04/72,554.88
6. Step 6: Final answer
   x = 166,556.91