Finding the Third Proportional to 72,188 and 157,456

Step by Step Solution

1. Step 1: Write the proportion equation
   72,188 : 157,456 = 157,456 : x
2. Step 2: Convert to fraction form
   72,188/157,456 = 157,456/x
3. Step 3: Cross multiply
   72,188x = 157,456 × 157,456
4. Step 4: Simplify right side
   72,188x = 24,792,391,936
5. Step 5: Solve for x
   x = 24,792,391,936/72,188
6. Step 6: Final answer
   x = 343,442.01