Finding the Third Proportional to 140,015.50 and 307,245

Step by Step Solution

1. Step 1: Write the proportion equation
   140,015.50 : 307,245 = 307,245 : x
2. Step 2: Convert to fraction form
   140,015.50/307,245 = 307,245/x
3. Step 3: Cross multiply
   140,015.50x = 307,245 × 307,245
4. Step 4: Simplify right side
   140,015.50x = 94,399,490,025
5. Step 5: Solve for x
   x = 94,399,490,025/140,015.50
6. Step 6: Final answer
   x = 674,207.43