Finding the Third Proportional to 328,483.50 and 708,240

Step by Step Solution

1. Step 1: Write the proportion equation
   328,483.50 : 708,240 = 708,240 : x
2. Step 2: Convert to fraction form
   328,483.50/708,240 = 708,240/x
3. Step 3: Cross multiply
   328,483.50x = 708,240 × 708,240
4. Step 4: Simplify right side
   328,483.50x = 501,603,897,600
5. Step 5: Solve for x
   x = 501,603,897,600/328,483.50
6. Step 6: Final answer
   x = 1,527,029.20