Finding the Third Proportional to 9,991.50 and 21,541.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,991.50 : 21,541.25 = 21,541.25 : x
2. Step 2: Convert to fraction form
   9,991.50/21,541.25 = 21,541.25/x
3. Step 3: Cross multiply
   9,991.50x = 21,541.25 × 21,541.25
4. Step 4: Simplify right side
   9,991.50x = 464,025,451.56
5. Step 5: Solve for x
   x = 464,025,451.56/9,991.50
6. Step 6: Final answer
   x = 46,442.02