Finding the Third Proportional to 248,104 and 538,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,104 : 538,216.50 = 538,216.50 : x
2. Step 2: Convert to fraction form
   248,104/538,216.50 = 538,216.50/x
3. Step 3: Cross multiply
   248,104x = 538,216.50 × 538,216.50
4. Step 4: Simplify right side
   248,104x = 289,677,000,872.25
5. Step 5: Solve for x
   x = 289,677,000,872.25/248,104
6. Step 6: Final answer
   x = 1,167,562.80