Finding the Third Proportional to 65,599.50 and 142,071

Step by Step Solution

1. Step 1: Write the proportion equation
   65,599.50 : 142,071 = 142,071 : x
2. Step 2: Convert to fraction form
   65,599.50/142,071 = 142,071/x
3. Step 3: Cross multiply
   65,599.50x = 142,071 × 142,071
4. Step 4: Simplify right side
   65,599.50x = 20,184,169,041
5. Step 5: Solve for x
   x = 20,184,169,041/65,599.50
6. Step 6: Final answer
   x = 307,687.85