Finding the Third Proportional to 38,487 and 57,472

Step by Step Solution

1. Step 1: Write the proportion equation
   38,487 : 57,472 = 57,472 : x
2. Step 2: Convert to fraction form
   38,487/57,472 = 57,472/x
3. Step 3: Cross multiply
   38,487x = 57,472 × 57,472
4. Step 4: Simplify right side
   38,487x = 3,303,030,784
5. Step 5: Solve for x
   x = 3,303,030,784/38,487
6. Step 6: Final answer
   x = 85,821.99