Finding the Third Proportional to 38,424 and 57,392

Step by Step Solution

1. Step 1: Write the proportion equation
   38,424 : 57,392 = 57,392 : x
2. Step 2: Convert to fraction form
   38,424/57,392 = 57,392/x
3. Step 3: Cross multiply
   38,424x = 57,392 × 57,392
4. Step 4: Simplify right side
   38,424x = 3,293,841,664
5. Step 5: Solve for x
   x = 3,293,841,664/38,424
6. Step 6: Final answer
   x = 85,723.55