Finding the Third Proportional to 9,156 and 21,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156 : 21,481.50 = 21,481.50 : x
2. Step 2: Convert to fraction form
   9,156/21,481.50 = 21,481.50/x
3. Step 3: Cross multiply
   9,156x = 21,481.50 × 21,481.50
4. Step 4: Simplify right side
   9,156x = 461,454,842.25
5. Step 5: Solve for x
   x = 461,454,842.25/9,156
6. Step 6: Final answer
   x = 50,399.17