Finding the Third Proportional to 140,104.69 and 210,327.89

Step by Step Solution

1. Step 1: Write the proportion equation
   140,104.69 : 210,327.89 = 210,327.89 : x
2. Step 2: Convert to fraction form
   140,104.69/210,327.89 = 210,327.89/x
3. Step 3: Cross multiply
   140,104.69x = 210,327.89 × 210,327.89
4. Step 4: Simplify right side
   140,104.69x = 44,237,821,574.76
5. Step 5: Solve for x
   x = 44,237,821,574.76/140,104.69
6. Step 6: Final answer
   x = 315,748.33