Finding the Third Proportional to 161,059.50 and 342,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   161,059.50 : 342,922.50 = 342,922.50 : x
2. Step 2: Convert to fraction form
   161,059.50/342,922.50 = 342,922.50/x
3. Step 3: Cross multiply
   161,059.50x = 342,922.50 × 342,922.50
4. Step 4: Simplify right side
   161,059.50x = 117,595,841,006.25
5. Step 5: Solve for x
   x = 117,595,841,006.25/161,059.50
6. Step 6: Final answer
   x = 730,139.12