Finding the Third Proportional to 42,472 and 90,008

Step by Step Solution

1. Step 1: Write the proportion equation
   42,472 : 90,008 = 90,008 : x
2. Step 2: Convert to fraction form
   42,472/90,008 = 90,008/x
3. Step 3: Cross multiply
   42,472x = 90,008 × 90,008
4. Step 4: Simplify right side
   42,472x = 8,101,440,064
5. Step 5: Solve for x
   x = 8,101,440,064/42,472
6. Step 6: Final answer
   x = 190,747.79