Finding the Third Proportional to 9,810 and 21,189.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810 : 21,189.38 = 21,189.38 : x
2. Step 2: Convert to fraction form
   9,810/21,189.38 = 21,189.38/x
3. Step 3: Cross multiply
   9,810x = 21,189.38 × 21,189.38
4. Step 4: Simplify right side
   9,810x = 448,989,612.89
5. Step 5: Solve for x
   x = 448,989,612.89/9,810
6. Step 6: Final answer
   x = 45,768.56