Finding the Third Proportional to 63,786 and 139,056

Step by Step Solution

1. Step 1: Write the proportion equation
   63,786 : 139,056 = 139,056 : x
2. Step 2: Convert to fraction form
   63,786/139,056 = 139,056/x
3. Step 3: Cross multiply
   63,786x = 139,056 × 139,056
4. Step 4: Simplify right side
   63,786x = 19,336,571,136
5. Step 5: Solve for x
   x = 19,336,571,136/63,786
6. Step 6: Final answer
   x = 303,147.57