Finding the Third Proportional to 17,556.75 and 19,470.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,556.75 : 19,470.38 = 19,470.38 : x
2. Step 2: Convert to fraction form
   17,556.75/19,470.38 = 19,470.38/x
3. Step 3: Cross multiply
   17,556.75x = 19,470.38 × 19,470.38
4. Step 4: Simplify right side
   17,556.75x = 379,095,502.64
5. Step 5: Solve for x
   x = 379,095,502.64/17,556.75
6. Step 6: Final answer
   x = 21,592.58