Finding the Third Proportional to 63,930 and 140,550

Step by Step Solution

1. Step 1: Write the proportion equation
   63,930 : 140,550 = 140,550 : x
2. Step 2: Convert to fraction form
   63,930/140,550 = 140,550/x
3. Step 3: Cross multiply
   63,930x = 140,550 × 140,550
4. Step 4: Simplify right side
   63,930x = 19,754,302,500
5. Step 5: Solve for x
   x = 19,754,302,500/63,930
6. Step 6: Final answer
   x = 308,998.94