Finding the Third Proportional to 326,133 and 661,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,133 : 661,486.50 = 661,486.50 : x
2. Step 2: Convert to fraction form
   326,133/661,486.50 = 661,486.50/x
3. Step 3: Cross multiply
   326,133x = 661,486.50 × 661,486.50
4. Step 4: Simplify right side
   326,133x = 437,564,389,682.25
5. Step 5: Solve for x
   x = 437,564,389,682.25/326,133
6. Step 6: Final answer
   x = 1,341,674.68