Finding the Third Proportional to 72,212 and 158,372

Step by Step Solution

1. Step 1: Write the proportion equation
   72,212 : 158,372 = 158,372 : x
2. Step 2: Convert to fraction form
   72,212/158,372 = 158,372/x
3. Step 3: Cross multiply
   72,212x = 158,372 × 158,372
4. Step 4: Simplify right side
   72,212x = 25,081,690,384
5. Step 5: Solve for x
   x = 25,081,690,384/72,212
6. Step 6: Final answer
   x = 347,334.10