Finding the Third Proportional to 304,311 and 445,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   304,311 : 445,198.50 = 445,198.50 : x
2. Step 2: Convert to fraction form
   304,311/445,198.50 = 445,198.50/x
3. Step 3: Cross multiply
   304,311x = 445,198.50 × 445,198.50
4. Step 4: Simplify right side
   304,311x = 198,201,704,402.25
5. Step 5: Solve for x
   x = 198,201,704,402.25/304,311
6. Step 6: Final answer
   x = 651,312.98