Finding the Third Proportional to 37,931 and 54,636

Step by Step Solution

1. Step 1: Write the proportion equation
   37,931 : 54,636 = 54,636 : x
2. Step 2: Convert to fraction form
   37,931/54,636 = 54,636/x
3. Step 3: Cross multiply
   37,931x = 54,636 × 54,636
4. Step 4: Simplify right side
   37,931x = 2,985,092,496
5. Step 5: Solve for x
   x = 2,985,092,496/37,931
6. Step 6: Final answer
   x = 78,697.96