Finding the Third Proportional to 151,508 and 328,090

Step by Step Solution

1. Step 1: Write the proportion equation
   151,508 : 328,090 = 328,090 : x
2. Step 2: Convert to fraction form
   151,508/328,090 = 328,090/x
3. Step 3: Cross multiply
   151,508x = 328,090 × 328,090
4. Step 4: Simplify right side
   151,508x = 107,643,048,100
5. Step 5: Solve for x
   x = 107,643,048,100/151,508
6. Step 6: Final answer
   x = 710,477.65