Finding the Third Proportional to 146,364 and 315,528

Step by Step Solution

1. Step 1: Write the proportion equation
   146,364 : 315,528 = 315,528 : x
2. Step 2: Convert to fraction form
   146,364/315,528 = 315,528/x
3. Step 3: Cross multiply
   146,364x = 315,528 × 315,528
4. Step 4: Simplify right side
   146,364x = 99,557,918,784
5. Step 5: Solve for x
   x = 99,557,918,784/146,364
6. Step 6: Final answer
   x = 680,207.69