Finding the Third Proportional to 42,336 and 90,503

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336 : 90,503 = 90,503 : x
2. Step 2: Convert to fraction form
   42,336/90,503 = 90,503/x
3. Step 3: Cross multiply
   42,336x = 90,503 × 90,503
4. Step 4: Simplify right side
   42,336x = 8,190,793,009
5. Step 5: Solve for x
   x = 8,190,793,009/42,336
6. Step 6: Final answer
   x = 193,471.11