Finding the Third Proportional to 59,768 and 90,136

Step by Step Solution

1. Step 1: Write the proportion equation
   59,768 : 90,136 = 90,136 : x
2. Step 2: Convert to fraction form
   59,768/90,136 = 90,136/x
3. Step 3: Cross multiply
   59,768x = 90,136 × 90,136
4. Step 4: Simplify right side
   59,768x = 8,124,498,496
5. Step 5: Solve for x
   x = 8,124,498,496/59,768
6. Step 6: Final answer
   x = 135,933.92