Finding the Third Proportional to 31,608 and 42,414

Step by Step Solution

1. Step 1: Write the proportion equation
   31,608 : 42,414 = 42,414 : x
2. Step 2: Convert to fraction form
   31,608/42,414 = 42,414/x
3. Step 3: Cross multiply
   31,608x = 42,414 × 42,414
4. Step 4: Simplify right side
   31,608x = 1,798,947,396
5. Step 5: Solve for x
   x = 1,798,947,396/31,608
6. Step 6: Final answer
   x = 56,914.31