Finding the Third Proportional to 51,921 and 112,590

Step by Step Solution

1. Step 1: Write the proportion equation
   51,921 : 112,590 = 112,590 : x
2. Step 2: Convert to fraction form
   51,921/112,590 = 112,590/x
3. Step 3: Cross multiply
   51,921x = 112,590 × 112,590
4. Step 4: Simplify right side
   51,921x = 12,676,508,100
5. Step 5: Solve for x
   x = 12,676,508,100/51,921
6. Step 6: Final answer
   x = 244,149.92