Finding the Third Proportional to 65,730 and 143,202

Step by Step Solution

1. Step 1: Write the proportion equation
   65,730 : 143,202 = 143,202 : x
2. Step 2: Convert to fraction form
   65,730/143,202 = 143,202/x
3. Step 3: Cross multiply
   65,730x = 143,202 × 143,202
4. Step 4: Simplify right side
   65,730x = 20,506,812,804
5. Step 5: Solve for x
   x = 20,506,812,804/65,730
6. Step 6: Final answer
   x = 311,985.59