Finding the Third Proportional to 307,226 and 668,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   307,226 : 668,306.50 = 668,306.50 : x
2. Step 2: Convert to fraction form
   307,226/668,306.50 = 668,306.50/x
3. Step 3: Cross multiply
   307,226x = 668,306.50 × 668,306.50
4. Step 4: Simplify right side
   307,226x = 446,633,577,942.25
5. Step 5: Solve for x
   x = 446,633,577,942.25/307,226
6. Step 6: Final answer
   x = 1,453,762.31