Finding the Third Proportional to 70,372.50 and 143,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,372.50 : 143,608.50 = 143,608.50 : x
2. Step 2: Convert to fraction form
   70,372.50/143,608.50 = 143,608.50/x
3. Step 3: Cross multiply
   70,372.50x = 143,608.50 × 143,608.50
4. Step 4: Simplify right side
   70,372.50x = 20,623,401,272.25
5. Step 5: Solve for x
   x = 20,623,401,272.25/70,372.50
6. Step 6: Final answer
   x = 293,060.52