Finding the Third Proportional to 65,278 and 139,092

Step by Step Solution

1. Step 1: Write the proportion equation
   65,278 : 139,092 = 139,092 : x
2. Step 2: Convert to fraction form
   65,278/139,092 = 139,092/x
3. Step 3: Cross multiply
   65,278x = 139,092 × 139,092
4. Step 4: Simplify right side
   65,278x = 19,346,584,464
5. Step 5: Solve for x
   x = 19,346,584,464/65,278
6. Step 6: Final answer
   x = 296,372.20