Finding the Third Proportional to 37,947 and 79,890

Step by Step Solution

1. Step 1: Write the proportion equation
   37,947 : 79,890 = 79,890 : x
2. Step 2: Convert to fraction form
   37,947/79,890 = 79,890/x
3. Step 3: Cross multiply
   37,947x = 79,890 × 79,890
4. Step 4: Simplify right side
   37,947x = 6,382,412,100
5. Step 5: Solve for x
   x = 6,382,412,100/37,947
6. Step 6: Final answer
   x = 168,192.80