Finding the Third Proportional to 326,168 and 459,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,168 : 459,316.50 = 459,316.50 : x
2. Step 2: Convert to fraction form
   326,168/459,316.50 = 459,316.50/x
3. Step 3: Cross multiply
   326,168x = 459,316.50 × 459,316.50
4. Step 4: Simplify right side
   326,168x = 210,971,647,172.25
5. Step 5: Solve for x
   x = 210,971,647,172.25/326,168
6. Step 6: Final answer
   x = 646,818.96