Finding the Third Proportional to 90,517.50 and 196,587

Step by Step Solution

1. Step 1: Write the proportion equation
   90,517.50 : 196,587 = 196,587 : x
2. Step 2: Convert to fraction form
   90,517.50/196,587 = 196,587/x
3. Step 3: Cross multiply
   90,517.50x = 196,587 × 196,587
4. Step 4: Simplify right side
   90,517.50x = 38,646,448,569
5. Step 5: Solve for x
   x = 38,646,448,569/90,517.50
6. Step 6: Final answer
   x = 426,950.02