Finding the Third Proportional to 137,968.50 and 303,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,968.50 : 303,031.50 = 303,031.50 : x
2. Step 2: Convert to fraction form
   137,968.50/303,031.50 = 303,031.50/x
3. Step 3: Cross multiply
   137,968.50x = 303,031.50 × 303,031.50
4. Step 4: Simplify right side
   137,968.50x = 91,828,089,992.25
5. Step 5: Solve for x
   x = 91,828,089,992.25/137,968.50
6. Step 6: Final answer
   x = 665,572.87