Finding the Third Proportional to 65,612 and 139,426

Step by Step Solution

1. Step 1: Write the proportion equation
   65,612 : 139,426 = 139,426 : x
2. Step 2: Convert to fraction form
   65,612/139,426 = 139,426/x
3. Step 3: Cross multiply
   65,612x = 139,426 × 139,426
4. Step 4: Simplify right side
   65,612x = 19,439,609,476
5. Step 5: Solve for x
   x = 19,439,609,476/65,612
6. Step 6: Final answer
   x = 296,281.31