Finding the Third Proportional to 65,245 and 139,035.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,245 : 139,035.50 = 139,035.50 : x
2. Step 2: Convert to fraction form
   65,245/139,035.50 = 139,035.50/x
3. Step 3: Cross multiply
   65,245x = 139,035.50 × 139,035.50
4. Step 4: Simplify right side
   65,245x = 19,330,870,260.25
5. Step 5: Solve for x
   x = 19,330,870,260.25/65,245
6. Step 6: Final answer
   x = 296,281.25