Finding the Third Proportional to 90,271.50 and 195,609

Step by Step Solution

1. Step 1: Write the proportion equation
   90,271.50 : 195,609 = 195,609 : x
2. Step 2: Convert to fraction form
   90,271.50/195,609 = 195,609/x
3. Step 3: Cross multiply
   90,271.50x = 195,609 × 195,609
4. Step 4: Simplify right side
   90,271.50x = 38,262,880,881
5. Step 5: Solve for x
   x = 38,262,880,881/90,271.50
6. Step 6: Final answer
   x = 423,864.46