Finding the Third Proportional to 42,472 and 65,492

Step by Step Solution

1. Step 1: Write the proportion equation
   42,472 : 65,492 = 65,492 : x
2. Step 2: Convert to fraction form
   42,472/65,492 = 65,492/x
3. Step 3: Cross multiply
   42,472x = 65,492 × 65,492
4. Step 4: Simplify right side
   42,472x = 4,289,202,064
5. Step 5: Solve for x
   x = 4,289,202,064/42,472
6. Step 6: Final answer
   x = 100,988.94