Finding the Third Proportional to 42,919.88 and 65,268.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,919.88 : 65,268.28 = 65,268.28 : x
2. Step 2: Convert to fraction form
   42,919.88/65,268.28 = 65,268.28/x
3. Step 3: Cross multiply
   42,919.88x = 65,268.28 × 65,268.28
4. Step 4: Simplify right side
   42,919.88x = 4,259,948,537.33
5. Step 5: Solve for x
   x = 4,259,948,537.33/42,919.88
6. Step 6: Final answer
   x = 99,253.52