Finding the Third Proportional to 9,912.50 and 21,796.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,912.50 : 21,796.63 = 21,796.63 : x
2. Step 2: Convert to fraction form
   9,912.50/21,796.63 = 21,796.63/x
3. Step 3: Cross multiply
   9,912.50x = 21,796.63 × 21,796.63
4. Step 4: Simplify right side
   9,912.50x = 475,092,861.39
5. Step 5: Solve for x
   x = 475,092,861.39/9,912.50
6. Step 6: Final answer
   x = 47,928.66