Finding the Third Proportional to 91,001 and 140,390

Step by Step Solution

1. Step 1: Write the proportion equation
   91,001 : 140,390 = 140,390 : x
2. Step 2: Convert to fraction form
   91,001/140,390 = 140,390/x
3. Step 3: Cross multiply
   91,001x = 140,390 × 140,390
4. Step 4: Simplify right side
   91,001x = 19,709,352,100
5. Step 5: Solve for x
   x = 19,709,352,100/91,001
6. Step 6: Final answer
   x = 216,583.91