Finding the Third Proportional to 11,870 and 19,122

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870 : 19,122 = 19,122 : x
2. Step 2: Convert to fraction form
   11,870/19,122 = 19,122/x
3. Step 3: Cross multiply
   11,870x = 19,122 × 19,122
4. Step 4: Simplify right side
   11,870x = 365,650,884
5. Step 5: Solve for x
   x = 365,650,884/11,870
6. Step 6: Final answer
   x = 30,804.62