Finding the Third Proportional to 65,610 and 139,421.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,610 : 139,421.25 = 139,421.25 : x
2. Step 2: Convert to fraction form
   65,610/139,421.25 = 139,421.25/x
3. Step 3: Cross multiply
   65,610x = 139,421.25 × 139,421.25
4. Step 4: Simplify right side
   65,610x = 19,438,284,951.56
5. Step 5: Solve for x
   x = 19,438,284,951.56/65,610
6. Step 6: Final answer
   x = 296,270.16