Finding the Third Proportional to 140,724 and 301,132

Step by Step Solution

1. Step 1: Write the proportion equation
   140,724 : 301,132 = 301,132 : x
2. Step 2: Convert to fraction form
   140,724/301,132 = 301,132/x
3. Step 3: Cross multiply
   140,724x = 301,132 × 301,132
4. Step 4: Simplify right side
   140,724x = 90,680,481,424
5. Step 5: Solve for x
   x = 90,680,481,424/140,724
6. Step 6: Final answer
   x = 644,385.33