Finding the Third Proportional to 328,152 and 712,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,152 : 712,321.50 = 712,321.50 : x
2. Step 2: Convert to fraction form
   328,152/712,321.50 = 712,321.50/x
3. Step 3: Cross multiply
   328,152x = 712,321.50 × 712,321.50
4. Step 4: Simplify right side
   328,152x = 507,401,919,362.25
5. Step 5: Solve for x
   x = 507,401,919,362.25/328,152
6. Step 6: Final answer
   x = 1,546,240.52