Finding the Third Proportional to 27,300.38 and 42,408.56

Step by Step Solution

1. Step 1: Write the proportion equation
   27,300.38 : 42,408.56 = 42,408.56 : x
2. Step 2: Convert to fraction form
   27,300.38/42,408.56 = 42,408.56/x
3. Step 3: Cross multiply
   27,300.38x = 42,408.56 × 42,408.56
4. Step 4: Simplify right side
   27,300.38x = 1,798,486,173.32
5. Step 5: Solve for x
   x = 1,798,486,173.32/27,300.38
6. Step 6: Final answer
   x = 65,877.71