Finding the Third Proportional to 46,920 and 69,072

Step by Step Solution

1. Step 1: Write the proportion equation
   46,920 : 69,072 = 69,072 : x
2. Step 2: Convert to fraction form
   46,920/69,072 = 69,072/x
3. Step 3: Cross multiply
   46,920x = 69,072 × 69,072
4. Step 4: Simplify right side
   46,920x = 4,770,941,184
5. Step 5: Solve for x
   x = 4,770,941,184/46,920
6. Step 6: Final answer
   x = 101,682.46