Finding the Third Proportional to 20,998.13 and 45,381.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,998.13 : 45,381.38 = 45,381.38 : x
2. Step 2: Convert to fraction form
   20,998.13/45,381.38 = 45,381.38/x
3. Step 3: Cross multiply
   20,998.13x = 45,381.38 × 45,381.38
4. Step 4: Simplify right side
   20,998.13x = 2,059,469,196.89
5. Step 5: Solve for x
   x = 2,059,469,196.89/20,998.13
6. Step 6: Final answer
   x = 98,078.72