Finding the Third Proportional to 18,818 and 42,091

Step by Step Solution

1. Step 1: Write the proportion equation
   18,818 : 42,091 = 42,091 : x
2. Step 2: Convert to fraction form
   18,818/42,091 = 42,091/x
3. Step 3: Cross multiply
   18,818x = 42,091 × 42,091
4. Step 4: Simplify right side
   18,818x = 1,771,652,281
5. Step 5: Solve for x
   x = 1,771,652,281/18,818
6. Step 6: Final answer
   x = 94,146.68