Finding the Third Proportional to 140,123 and 307,181

Step by Step Solution

1. Step 1: Write the proportion equation
   140,123 : 307,181 = 307,181 : x
2. Step 2: Convert to fraction form
   140,123/307,181 = 307,181/x
3. Step 3: Cross multiply
   140,123x = 307,181 × 307,181
4. Step 4: Simplify right side
   140,123x = 94,360,166,761
5. Step 5: Solve for x
   x = 94,360,166,761/140,123
6. Step 6: Final answer
   x = 673,409.55