Finding the Third Proportional to 102,251.25 and 218,718

Step by Step Solution

1. Step 1: Write the proportion equation
   102,251.25 : 218,718 = 218,718 : x
2. Step 2: Convert to fraction form
   102,251.25/218,718 = 218,718/x
3. Step 3: Cross multiply
   102,251.25x = 218,718 × 218,718
4. Step 4: Simplify right side
   102,251.25x = 47,837,563,524
5. Step 5: Solve for x
   x = 47,837,563,524/102,251.25
6. Step 6: Final answer
   x = 467,843.31