Finding the Third Proportional to 63,978.75 and 100,136.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,978.75 : 100,136.25 = 100,136.25 : x
2. Step 2: Convert to fraction form
   63,978.75/100,136.25 = 100,136.25/x
3. Step 3: Cross multiply
   63,978.75x = 100,136.25 × 100,136.25
4. Step 4: Simplify right side
   63,978.75x = 10,027,268,564.06
5. Step 5: Solve for x
   x = 10,027,268,564.06/63,978.75
6. Step 6: Final answer
   x = 156,728.11