Finding the Third Proportional to 142,796 and 310,173.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,796 : 310,173.50 = 310,173.50 : x
2. Step 2: Convert to fraction form
   142,796/310,173.50 = 310,173.50/x
3. Step 3: Cross multiply
   142,796x = 310,173.50 × 310,173.50
4. Step 4: Simplify right side
   142,796x = 96,207,600,102.25
5. Step 5: Solve for x
   x = 96,207,600,102.25/142,796
6. Step 6: Final answer
   x = 673,741.56