Finding the Third Proportional to 63,724 and 140,310

Step by Step Solution

1. Step 1: Write the proportion equation
   63,724 : 140,310 = 140,310 : x
2. Step 2: Convert to fraction form
   63,724/140,310 = 140,310/x
3. Step 3: Cross multiply
   63,724x = 140,310 × 140,310
4. Step 4: Simplify right side
   63,724x = 19,686,896,100
5. Step 5: Solve for x
   x = 19,686,896,100/63,724
6. Step 6: Final answer
   x = 308,940.06