Finding the Third Proportional to 65,108 and 139,432

Step by Step Solution

1. Step 1: Write the proportion equation
   65,108 : 139,432 = 139,432 : x
2. Step 2: Convert to fraction form
   65,108/139,432 = 139,432/x
3. Step 3: Cross multiply
   65,108x = 139,432 × 139,432
4. Step 4: Simplify right side
   65,108x = 19,441,282,624
5. Step 5: Solve for x
   x = 19,441,282,624/65,108
6. Step 6: Final answer
   x = 298,600.52