Finding the Third Proportional to 20,820.38 and 45,447.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,820.38 : 45,447.75 = 45,447.75 : x
2. Step 2: Convert to fraction form
   20,820.38/45,447.75 = 45,447.75/x
3. Step 3: Cross multiply
   20,820.38x = 45,447.75 × 45,447.75
4. Step 4: Simplify right side
   20,820.38x = 2,065,497,980.06
5. Step 5: Solve for x
   x = 2,065,497,980.06/20,820.38
6. Step 6: Final answer
   x = 99,205.61