Finding the Third Proportional to 42,529 and 90,434

Step by Step Solution

1. Step 1: Write the proportion equation
   42,529 : 90,434 = 90,434 : x
2. Step 2: Convert to fraction form
   42,529/90,434 = 90,434/x
3. Step 3: Cross multiply
   42,529x = 90,434 × 90,434
4. Step 4: Simplify right side
   42,529x = 8,178,308,356
5. Step 5: Solve for x
   x = 8,178,308,356/42,529
6. Step 6: Final answer
   x = 192,299.57