Finding the Third Proportional to 115,917 and 247,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,917 : 247,144.50 = 247,144.50 : x
2. Step 2: Convert to fraction form
   115,917/247,144.50 = 247,144.50/x
3. Step 3: Cross multiply
   115,917x = 247,144.50 × 247,144.50
4. Step 4: Simplify right side
   115,917x = 61,080,403,880.25
5. Step 5: Solve for x
   x = 61,080,403,880.25/115,917
6. Step 6: Final answer
   x = 526,932.23