Finding the Third Proportional to 42,448 and 57,444

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448 : 57,444 = 57,444 : x
2. Step 2: Convert to fraction form
   42,448/57,444 = 57,444/x
3. Step 3: Cross multiply
   42,448x = 57,444 × 57,444
4. Step 4: Simplify right side
   42,448x = 3,299,813,136
5. Step 5: Solve for x
   x = 3,299,813,136/42,448
6. Step 6: Final answer
   x = 77,737.78