Finding the Third Proportional to 65,649.50 and 143,181

Step by Step Solution

1. Step 1: Write the proportion equation
   65,649.50 : 143,181 = 143,181 : x
2. Step 2: Convert to fraction form
   65,649.50/143,181 = 143,181/x
3. Step 3: Cross multiply
   65,649.50x = 143,181 × 143,181
4. Step 4: Simplify right side
   65,649.50x = 20,500,798,761
5. Step 5: Solve for x
   x = 20,500,798,761/65,649.50
6. Step 6: Final answer
   x = 312,276.54