Finding the Third Proportional to 328,308 and 536,040

Step by Step Solution

1. Step 1: Write the proportion equation
   328,308 : 536,040 = 536,040 : x
2. Step 2: Convert to fraction form
   328,308/536,040 = 536,040/x
3. Step 3: Cross multiply
   328,308x = 536,040 × 536,040
4. Step 4: Simplify right side
   328,308x = 287,338,881,600
5. Step 5: Solve for x
   x = 287,338,881,600/328,308
6. Step 6: Final answer
   x = 875,211.33