Finding the Third Proportional to 161,490 and 231,163.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,490 : 231,163.50 = 231,163.50 : x
2. Step 2: Convert to fraction form
   161,490/231,163.50 = 231,163.50/x
3. Step 3: Cross multiply
   161,490x = 231,163.50 × 231,163.50
4. Step 4: Simplify right side
   161,490x = 53,436,563,732.25
5. Step 5: Solve for x
   x = 53,436,563,732.25/161,490
6. Step 6: Final answer
   x = 330,897.04