Finding the Third Proportional to 65,554 and 140,454

Step by Step Solution

1. Step 1: Write the proportion equation
   65,554 : 140,454 = 140,454 : x
2. Step 2: Convert to fraction form
   65,554/140,454 = 140,454/x
3. Step 3: Cross multiply
   65,554x = 140,454 × 140,454
4. Step 4: Simplify right side
   65,554x = 19,727,326,116
5. Step 5: Solve for x
   x = 19,727,326,116/65,554
6. Step 6: Final answer
   x = 300,932.45