Finding the Third Proportional to 248,517 and 335,623.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,517 : 335,623.50 = 335,623.50 : x
2. Step 2: Convert to fraction form
   248,517/335,623.50 = 335,623.50/x
3. Step 3: Cross multiply
   248,517x = 335,623.50 × 335,623.50
4. Step 4: Simplify right side
   248,517x = 112,643,133,752.25
5. Step 5: Solve for x
   x = 112,643,133,752.25/248,517
6. Step 6: Final answer
   x = 453,261.28