Finding the Third Proportional to 140,242 and 307,700

Step by Step Solution

1. Step 1: Write the proportion equation
   140,242 : 307,700 = 307,700 : x
2. Step 2: Convert to fraction form
   140,242/307,700 = 307,700/x
3. Step 3: Cross multiply
   140,242x = 307,700 × 307,700
4. Step 4: Simplify right side
   140,242x = 94,679,290,000
5. Step 5: Solve for x
   x = 94,679,290,000/140,242
6. Step 6: Final answer
   x = 675,113.66