Finding the Third Proportional to 45,728 and 64,056

Step by Step Solution

1. Step 1: Write the proportion equation
   45,728 : 64,056 = 64,056 : x
2. Step 2: Convert to fraction form
   45,728/64,056 = 64,056/x
3. Step 3: Cross multiply
   45,728x = 64,056 × 64,056
4. Step 4: Simplify right side
   45,728x = 4,103,171,136
5. Step 5: Solve for x
   x = 4,103,171,136/45,728
6. Step 6: Final answer
   x = 89,729.95