Finding the Third Proportional to 13,900.88 and 21,556.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.88 : 21,556.69 = 21,556.69 : x
2. Step 2: Convert to fraction form
   13,900.88/21,556.69 = 21,556.69/x
3. Step 3: Cross multiply
   13,900.88x = 21,556.69 × 21,556.69
4. Step 4: Simplify right side
   13,900.88x = 464,690,775.97
5. Step 5: Solve for x
   x = 464,690,775.97/13,900.88
6. Step 6: Final answer
   x = 33,428.89