Finding the Third Proportional to 21,060 and 31,558

Step by Step Solution

1. Step 1: Write the proportion equation
   21,060 : 31,558 = 31,558 : x
2. Step 2: Convert to fraction form
   21,060/31,558 = 31,558/x
3. Step 3: Cross multiply
   21,060x = 31,558 × 31,558
4. Step 4: Simplify right side
   21,060x = 995,907,364
5. Step 5: Solve for x
   x = 995,907,364/21,060
6. Step 6: Final answer
   x = 47,289.05