Finding the Third Proportional to 39,426 and 55,452

Step by Step Solution

1. Step 1: Write the proportion equation
   39,426 : 55,452 = 55,452 : x
2. Step 2: Convert to fraction form
   39,426/55,452 = 55,452/x
3. Step 3: Cross multiply
   39,426x = 55,452 × 55,452
4. Step 4: Simplify right side
   39,426x = 3,074,924,304
5. Step 5: Solve for x
   x = 3,074,924,304/39,426
6. Step 6: Final answer
   x = 77,992.30