Finding the Third Proportional to 18,292 and 42,742

Step by Step Solution

1. Step 1: Write the proportion equation
   18,292 : 42,742 = 42,742 : x
2. Step 2: Convert to fraction form
   18,292/42,742 = 42,742/x
3. Step 3: Cross multiply
   18,292x = 42,742 × 42,742
4. Step 4: Simplify right side
   18,292x = 1,826,878,564
5. Step 5: Solve for x
   x = 1,826,878,564/18,292
6. Step 6: Final answer
   x = 99,873.09