Finding the Third Proportional to 328,886 and 492,010

Step by Step Solution

1. Step 1: Write the proportion equation
   328,886 : 492,010 = 492,010 : x
2. Step 2: Convert to fraction form
   328,886/492,010 = 492,010/x
3. Step 3: Cross multiply
   328,886x = 492,010 × 492,010
4. Step 4: Simplify right side
   328,886x = 242,073,840,100
5. Step 5: Solve for x
   x = 242,073,840,100/328,886
6. Step 6: Final answer
   x = 736,041.79