Finding the Third Proportional to 18,870 and 31,341

Step by Step Solution

1. Step 1: Write the proportion equation
   18,870 : 31,341 = 31,341 : x
2. Step 2: Convert to fraction form
   18,870/31,341 = 31,341/x
3. Step 3: Cross multiply
   18,870x = 31,341 × 31,341
4. Step 4: Simplify right side
   18,870x = 982,258,281
5. Step 5: Solve for x
   x = 982,258,281/18,870
6. Step 6: Final answer
   x = 52,053.96