Finding the Third Proportional to 89,310.50 and 192,643

Step by Step Solution

1. Step 1: Write the proportion equation
   89,310.50 : 192,643 = 192,643 : x
2. Step 2: Convert to fraction form
   89,310.50/192,643 = 192,643/x
3. Step 3: Cross multiply
   89,310.50x = 192,643 × 192,643
4. Step 4: Simplify right side
   89,310.50x = 37,111,325,449
5. Step 5: Solve for x
   x = 37,111,325,449/89,310.50
6. Step 6: Final answer
   x = 415,531.49