Finding the Third Proportional to 39,920 and 60,174

Step by Step Solution

1. Step 1: Write the proportion equation
   39,920 : 60,174 = 60,174 : x
2. Step 2: Convert to fraction form
   39,920/60,174 = 60,174/x
3. Step 3: Cross multiply
   39,920x = 60,174 × 60,174
4. Step 4: Simplify right side
   39,920x = 3,620,910,276
5. Step 5: Solve for x
   x = 3,620,910,276/39,920
6. Step 6: Final answer
   x = 90,704.17