Finding the Third Proportional to 232,290 and 355,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   232,290 : 355,099.50 = 355,099.50 : x
2. Step 2: Convert to fraction form
   232,290/355,099.50 = 355,099.50/x
3. Step 3: Cross multiply
   232,290x = 355,099.50 × 355,099.50
4. Step 4: Simplify right side
   232,290x = 126,095,654,900.25
5. Step 5: Solve for x
   x = 126,095,654,900.25/232,290
6. Step 6: Final answer
   x = 542,837.21