Finding the Third Proportional to 91,002 and 140,391

Step by Step Solution

1. Step 1: Write the proportion equation
   91,002 : 140,391 = 140,391 : x
2. Step 2: Convert to fraction form
   91,002/140,391 = 140,391/x
3. Step 3: Cross multiply
   91,002x = 140,391 × 140,391
4. Step 4: Simplify right side
   91,002x = 19,709,632,881
5. Step 5: Solve for x
   x = 19,709,632,881/91,002
6. Step 6: Final answer
   x = 216,584.61