Finding the Third Proportional to 9,855.56 and 21,897.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.56 : 21,897.56 = 21,897.56 : x
2. Step 2: Convert to fraction form
   9,855.56/21,897.56 = 21,897.56/x
3. Step 3: Cross multiply
   9,855.56x = 21,897.56 × 21,897.56
4. Step 4: Simplify right side
   9,855.56x = 479,503,243.44
5. Step 5: Solve for x
   x = 479,503,243.44/9,855.56
6. Step 6: Final answer
   x = 48,653.06