Finding the Third Proportional to 72,216 and 157,554

Step by Step Solution

1. Step 1: Write the proportion equation
   72,216 : 157,554 = 157,554 : x
2. Step 2: Convert to fraction form
   72,216/157,554 = 157,554/x
3. Step 3: Cross multiply
   72,216x = 157,554 × 157,554
4. Step 4: Simplify right side
   72,216x = 24,823,262,916
5. Step 5: Solve for x
   x = 24,823,262,916/72,216
6. Step 6: Final answer
   x = 343,736.33