Finding the Third Proportional to 155,541 and 320,896.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,541 : 320,896.50 = 320,896.50 : x
2. Step 2: Convert to fraction form
   155,541/320,896.50 = 320,896.50/x
3. Step 3: Cross multiply
   155,541x = 320,896.50 × 320,896.50
4. Step 4: Simplify right side
   155,541x = 102,974,563,712.25
5. Step 5: Solve for x
   x = 102,974,563,712.25/155,541
6. Step 6: Final answer
   x = 662,041.29