Finding the Third Proportional to 42,356 and 90,190

Step by Step Solution

1. Step 1: Write the proportion equation
   42,356 : 90,190 = 90,190 : x
2. Step 2: Convert to fraction form
   42,356/90,190 = 90,190/x
3. Step 3: Cross multiply
   42,356x = 90,190 × 90,190
4. Step 4: Simplify right side
   42,356x = 8,134,236,100
5. Step 5: Solve for x
   x = 8,134,236,100/42,356
6. Step 6: Final answer
   x = 192,044.48