Finding the Third Proportional to 90,328.50 and 195,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,328.50 : 195,223.50 = 195,223.50 : x
2. Step 2: Convert to fraction form
   90,328.50/195,223.50 = 195,223.50/x
3. Step 3: Cross multiply
   90,328.50x = 195,223.50 × 195,223.50
4. Step 4: Simplify right side
   90,328.50x = 38,112,214,952.25
5. Step 5: Solve for x
   x = 38,112,214,952.25/90,328.50
6. Step 6: Final answer
   x = 421,929.01