Finding the Third Proportional to 123,260 and 252,360

Step by Step Solution

1. Step 1: Write the proportion equation
   123,260 : 252,360 = 252,360 : x
2. Step 2: Convert to fraction form
   123,260/252,360 = 252,360/x
3. Step 3: Cross multiply
   123,260x = 252,360 × 252,360
4. Step 4: Simplify right side
   123,260x = 63,685,569,600
5. Step 5: Solve for x
   x = 63,685,569,600/123,260
6. Step 6: Final answer
   x = 516,676.70