Finding the Third Proportional to 90,513 and 140,949

Step by Step Solution

1. Step 1: Write the proportion equation
   90,513 : 140,949 = 140,949 : x
2. Step 2: Convert to fraction form
   90,513/140,949 = 140,949/x
3. Step 3: Cross multiply
   90,513x = 140,949 × 140,949
4. Step 4: Simplify right side
   90,513x = 19,866,620,601
5. Step 5: Solve for x
   x = 19,866,620,601/90,513
6. Step 6: Final answer
   x = 219,489.14