Finding the Third Proportional to 317,322 and 495,276.75

Step by Step Solution

1. Step 1: Write the proportion equation
   317,322 : 495,276.75 = 495,276.75 : x
2. Step 2: Convert to fraction form
   317,322/495,276.75 = 495,276.75/x
3. Step 3: Cross multiply
   317,322x = 495,276.75 × 495,276.75
4. Step 4: Simplify right side
   317,322x = 245,299,059,090.56
5. Step 5: Solve for x
   x = 245,299,059,090.56/317,322
6. Step 6: Final answer
   x = 773,028.84