Finding the Third Proportional to 42,819.75 and 90,255.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,819.75 : 90,255.38 = 90,255.38 : x
2. Step 2: Convert to fraction form
   42,819.75/90,255.38 = 90,255.38/x
3. Step 3: Cross multiply
   42,819.75x = 90,255.38 × 90,255.38
4. Step 4: Simplify right side
   42,819.75x = 8,146,032,716.39
5. Step 5: Solve for x
   x = 8,146,032,716.39/42,819.75
6. Step 6: Final answer
   x = 190,240.08