Finding the Third Proportional to 89,751 and 139,365

Step by Step Solution

1. Step 1: Write the proportion equation
   89,751 : 139,365 = 139,365 : x
2. Step 2: Convert to fraction form
   89,751/139,365 = 139,365/x
3. Step 3: Cross multiply
   89,751x = 139,365 × 139,365
4. Step 4: Simplify right side
   89,751x = 19,422,603,225
5. Step 5: Solve for x
   x = 19,422,603,225/89,751
6. Step 6: Final answer
   x = 216,405.42