Finding the Third Proportional to 326,158.50 and 716,631

Step by Step Solution

1. Step 1: Write the proportion equation
   326,158.50 : 716,631 = 716,631 : x
2. Step 2: Convert to fraction form
   326,158.50/716,631 = 716,631/x
3. Step 3: Cross multiply
   326,158.50x = 716,631 × 716,631
4. Step 4: Simplify right side
   326,158.50x = 513,559,990,161
5. Step 5: Solve for x
   x = 513,559,990,161/326,158.50
6. Step 6: Final answer
   x = 1,574,571.84