Finding the Third Proportional to 140,379.50 and 307,003

Step by Step Solution

1. Step 1: Write the proportion equation
   140,379.50 : 307,003 = 307,003 : x
2. Step 2: Convert to fraction form
   140,379.50/307,003 = 307,003/x
3. Step 3: Cross multiply
   140,379.50x = 307,003 × 307,003
4. Step 4: Simplify right side
   140,379.50x = 94,250,842,009
5. Step 5: Solve for x
   x = 94,250,842,009/140,379.50
6. Step 6: Final answer
   x = 671,400.33