Finding the Third Proportional to 65,364 and 143,188

Step by Step Solution

1. Step 1: Write the proportion equation
   65,364 : 143,188 = 143,188 : x
2. Step 2: Convert to fraction form
   65,364/143,188 = 143,188/x
3. Step 3: Cross multiply
   65,364x = 143,188 × 143,188
4. Step 4: Simplify right side
   65,364x = 20,502,803,344
5. Step 5: Solve for x
   x = 20,502,803,344/65,364
6. Step 6: Final answer
   x = 313,671.19