Finding the Third Proportional to 9,499 and 21,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499 : 21,990.50 = 21,990.50 : x
2. Step 2: Convert to fraction form
   9,499/21,990.50 = 21,990.50/x
3. Step 3: Cross multiply
   9,499x = 21,990.50 × 21,990.50
4. Step 4: Simplify right side
   9,499x = 483,582,090.25
5. Step 5: Solve for x
   x = 483,582,090.25/9,499
6. Step 6: Final answer
   x = 50,908.74