Finding the Third Proportional to 51,420 and 111,948

Step by Step Solution

1. Step 1: Write the proportion equation
   51,420 : 111,948 = 111,948 : x
2. Step 2: Convert to fraction form
   51,420/111,948 = 111,948/x
3. Step 3: Cross multiply
   51,420x = 111,948 × 111,948
4. Step 4: Simplify right side
   51,420x = 12,532,354,704
5. Step 5: Solve for x
   x = 12,532,354,704/51,420
6. Step 6: Final answer
   x = 243,725.30