Finding the Third Proportional to 47,689 and 70,072

Step by Step Solution

1. Step 1: Write the proportion equation
   47,689 : 70,072 = 70,072 : x
2. Step 2: Convert to fraction form
   47,689/70,072 = 70,072/x
3. Step 3: Cross multiply
   47,689x = 70,072 × 70,072
4. Step 4: Simplify right side
   47,689x = 4,910,085,184
5. Step 5: Solve for x
   x = 4,910,085,184/47,689
6. Step 6: Final answer
   x = 102,960.54