Finding the Third Proportional to 19,212.19 and 21,034.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,212.19 : 21,034.69 = 21,034.69 : x
2. Step 2: Convert to fraction form
   19,212.19/21,034.69 = 21,034.69/x
3. Step 3: Cross multiply
   19,212.19x = 21,034.69 × 21,034.69
4. Step 4: Simplify right side
   19,212.19x = 442,458,078.22
5. Step 5: Solve for x
   x = 442,458,078.22/19,212.19
6. Step 6: Final answer
   x = 23,030.07