Finding the Third Proportional to 140,189 and 307,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,189 : 307,518.50 = 307,518.50 : x
2. Step 2: Convert to fraction form
   140,189/307,518.50 = 307,518.50/x
3. Step 3: Cross multiply
   140,189x = 307,518.50 × 307,518.50
4. Step 4: Simplify right side
   140,189x = 94,567,627,842.25
5. Step 5: Solve for x
   x = 94,567,627,842.25/140,189
6. Step 6: Final answer
   x = 674,572.38