Finding the Third Proportional to 65,647.50 and 140,637

Step by Step Solution

1. Step 1: Write the proportion equation
   65,647.50 : 140,637 = 140,637 : x
2. Step 2: Convert to fraction form
   65,647.50/140,637 = 140,637/x
3. Step 3: Cross multiply
   65,647.50x = 140,637 × 140,637
4. Step 4: Simplify right side
   65,647.50x = 19,778,765,769
5. Step 5: Solve for x
   x = 19,778,765,769/65,647.50
6. Step 6: Final answer
   x = 301,287.42