Finding the Third Proportional to 155,826 and 331,090

Step by Step Solution

1. Step 1: Write the proportion equation
   155,826 : 331,090 = 331,090 : x
2. Step 2: Convert to fraction form
   155,826/331,090 = 331,090/x
3. Step 3: Cross multiply
   155,826x = 331,090 × 331,090
4. Step 4: Simplify right side
   155,826x = 109,620,588,100
5. Step 5: Solve for x
   x = 109,620,588,100/155,826
6. Step 6: Final answer
   x = 703,480.73