Finding the Third Proportional to 70,413 and 146,631

Step by Step Solution

1. Step 1: Write the proportion equation
   70,413 : 146,631 = 146,631 : x
2. Step 2: Convert to fraction form
   70,413/146,631 = 146,631/x
3. Step 3: Cross multiply
   70,413x = 146,631 × 146,631
4. Step 4: Simplify right side
   70,413x = 21,500,650,161
5. Step 5: Solve for x
   x = 21,500,650,161/70,413
6. Step 6: Final answer
   x = 305,350.58