Finding the Third Proportional to 148,942.50 and 324,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,942.50 : 324,091.50 = 324,091.50 : x
2. Step 2: Convert to fraction form
   148,942.50/324,091.50 = 324,091.50/x
3. Step 3: Cross multiply
   148,942.50x = 324,091.50 × 324,091.50
4. Step 4: Simplify right side
   148,942.50x = 105,035,300,372.25
5. Step 5: Solve for x
   x = 105,035,300,372.25/148,942.50
6. Step 6: Final answer
   x = 705,207.05