Finding the Third Proportional to 149,445 and 323,311.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,445 : 323,311.50 = 323,311.50 : x
2. Step 2: Convert to fraction form
   149,445/323,311.50 = 323,311.50/x
3. Step 3: Cross multiply
   149,445x = 323,311.50 × 323,311.50
4. Step 4: Simplify right side
   149,445x = 104,530,326,032.25
5. Step 5: Solve for x
   x = 104,530,326,032.25/149,445
6. Step 6: Final answer
   x = 699,456.83