Finding the Third Proportional to 42,391 and 65,535

Step by Step Solution

1. Step 1: Write the proportion equation
   42,391 : 65,535 = 65,535 : x
2. Step 2: Convert to fraction form
   42,391/65,535 = 65,535/x
3. Step 3: Cross multiply
   42,391x = 65,535 × 65,535
4. Step 4: Simplify right side
   42,391x = 4,294,836,225
5. Step 5: Solve for x
   x = 4,294,836,225/42,391
6. Step 6: Final answer
   x = 101,314.81