Finding the Third Proportional to 201,931.75 and 316,799

Step by Step Solution

1. Step 1: Write the proportion equation
   201,931.75 : 316,799 = 316,799 : x
2. Step 2: Convert to fraction form
   201,931.75/316,799 = 316,799/x
3. Step 3: Cross multiply
   201,931.75x = 316,799 × 316,799
4. Step 4: Simplify right side
   201,931.75x = 100,361,606,401
5. Step 5: Solve for x
   x = 100,361,606,401/201,931.75
6. Step 6: Final answer
   x = 497,007.56