Finding the Third Proportional to 21,556.13 and 34,480.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,556.13 : 34,480.69 = 34,480.69 : x
2. Step 2: Convert to fraction form
   21,556.13/34,480.69 = 34,480.69/x
3. Step 3: Cross multiply
   21,556.13x = 34,480.69 × 34,480.69
4. Step 4: Simplify right side
   21,556.13x = 1,188,917,810.47
5. Step 5: Solve for x
   x = 1,188,917,810.47/21,556.13
6. Step 6: Final answer
   x = 55,154.52