Finding the Third Proportional to 9,905 and 21,996.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,905 : 21,996.50 = 21,996.50 : x
2. Step 2: Convert to fraction form
   9,905/21,996.50 = 21,996.50/x
3. Step 3: Cross multiply
   9,905x = 21,996.50 × 21,996.50
4. Step 4: Simplify right side
   9,905x = 483,846,012.25
5. Step 5: Solve for x
   x = 483,846,012.25/9,905
6. Step 6: Final answer
   x = 48,848.66