Finding the Third Proportional to 65,036.50 and 139,775

Step by Step Solution

1. Step 1: Write the proportion equation
   65,036.50 : 139,775 = 139,775 : x
2. Step 2: Convert to fraction form
   65,036.50/139,775 = 139,775/x
3. Step 3: Cross multiply
   65,036.50x = 139,775 × 139,775
4. Step 4: Simplify right side
   65,036.50x = 19,537,050,625
5. Step 5: Solve for x
   x = 19,537,050,625/65,036.50
6. Step 6: Final answer
   x = 300,401.32