Finding the Third Proportional to 42,572 and 90,936

Step by Step Solution

1. Step 1: Write the proportion equation
   42,572 : 90,936 = 90,936 : x
2. Step 2: Convert to fraction form
   42,572/90,936 = 90,936/x
3. Step 3: Cross multiply
   42,572x = 90,936 × 90,936
4. Step 4: Simplify right side
   42,572x = 8,269,356,096
5. Step 5: Solve for x
   x = 8,269,356,096/42,572
6. Step 6: Final answer
   x = 194,244.01