Finding the Third Proportional to 42,255.42 and 65,340.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,255.42 : 65,340.78 = 65,340.78 : x
2. Step 2: Convert to fraction form
   42,255.42/65,340.78 = 65,340.78/x
3. Step 3: Cross multiply
   42,255.42x = 65,340.78 × 65,340.78
4. Step 4: Simplify right side
   42,255.42x = 4,269,417,247.69
5. Step 5: Solve for x
   x = 4,269,417,247.69/42,255.42
6. Step 6: Final answer
   x = 101,038.33