Finding the Third Proportional to 65,539.50 and 143,344

Step by Step Solution

1. Step 1: Write the proportion equation
   65,539.50 : 143,344 = 143,344 : x
2. Step 2: Convert to fraction form
   65,539.50/143,344 = 143,344/x
3. Step 3: Cross multiply
   65,539.50x = 143,344 × 143,344
4. Step 4: Simplify right side
   65,539.50x = 20,547,502,336
5. Step 5: Solve for x
   x = 20,547,502,336/65,539.50
6. Step 6: Final answer
   x = 313,513.26