Finding the Third Proportional to 336,303 and 491,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   336,303 : 491,521.50 = 491,521.50 : x
2. Step 2: Convert to fraction form
   336,303/491,521.50 = 491,521.50/x
3. Step 3: Cross multiply
   336,303x = 491,521.50 × 491,521.50
4. Step 4: Simplify right side
   336,303x = 241,593,384,962.25
5. Step 5: Solve for x
   x = 241,593,384,962.25/336,303
6. Step 6: Final answer
   x = 718,380.11