Finding the Third Proportional to 9,042.25 and 13,210

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.25 : 13,210 = 13,210 : x
2. Step 2: Convert to fraction form
   9,042.25/13,210 = 13,210/x
3. Step 3: Cross multiply
   9,042.25x = 13,210 × 13,210
4. Step 4: Simplify right side
   9,042.25x = 174,504,100
5. Step 5: Solve for x
   x = 174,504,100/9,042.25
6. Step 6: Final answer
   x = 19,298.75