Finding the Third Proportional to 161,190 and 351,519.75

Step by Step Solution

1. Step 1: Write the proportion equation
   161,190 : 351,519.75 = 351,519.75 : x
2. Step 2: Convert to fraction form
   161,190/351,519.75 = 351,519.75/x
3. Step 3: Cross multiply
   161,190x = 351,519.75 × 351,519.75
4. Step 4: Simplify right side
   161,190x = 123,566,134,640.06
5. Step 5: Solve for x
   x = 123,566,134,640.06/161,190
6. Step 6: Final answer
   x = 766,586.85