Finding the Third Proportional to 90,774 and 140,472

Step by Step Solution

1. Step 1: Write the proportion equation
   90,774 : 140,472 = 140,472 : x
2. Step 2: Convert to fraction form
   90,774/140,472 = 140,472/x
3. Step 3: Cross multiply
   90,774x = 140,472 × 140,472
4. Step 4: Simplify right side
   90,774x = 19,732,382,784
5. Step 5: Solve for x
   x = 19,732,382,784/90,774
6. Step 6: Final answer
   x = 217,379.24