Finding the Third Proportional to 89,106.75 and 139,493.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,106.75 : 139,493.25 = 139,493.25 : x
2. Step 2: Convert to fraction form
   89,106.75/139,493.25 = 139,493.25/x
3. Step 3: Cross multiply
   89,106.75x = 139,493.25 × 139,493.25
4. Step 4: Simplify right side
   89,106.75x = 19,458,366,795.56
5. Step 5: Solve for x
   x = 19,458,366,795.56/89,106.75
6. Step 6: Final answer
   x = 218,371.41