Finding the Third Proportional to 31,673 and 42,513

Step by Step Solution

1. Step 1: Write the proportion equation
   31,673 : 42,513 = 42,513 : x
2. Step 2: Convert to fraction form
   31,673/42,513 = 42,513/x
3. Step 3: Cross multiply
   31,673x = 42,513 × 42,513
4. Step 4: Simplify right side
   31,673x = 1,807,355,169
5. Step 5: Solve for x
   x = 1,807,355,169/31,673
6. Step 6: Final answer
   x = 57,062.96