Finding the Third Proportional to 326,487 and 462,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,487 : 462,136.50 = 462,136.50 : x
2. Step 2: Convert to fraction form
   326,487/462,136.50 = 462,136.50/x
3. Step 3: Cross multiply
   326,487x = 462,136.50 × 462,136.50
4. Step 4: Simplify right side
   326,487x = 213,570,144,632.25
5. Step 5: Solve for x
   x = 213,570,144,632.25/326,487
6. Step 6: Final answer
   x = 654,145.94