Finding the Third Proportional to 154,801 and 316,160

Step by Step Solution

1. Step 1: Write the proportion equation
   154,801 : 316,160 = 316,160 : x
2. Step 2: Convert to fraction form
   154,801/316,160 = 316,160/x
3. Step 3: Cross multiply
   154,801x = 316,160 × 316,160
4. Step 4: Simplify right side
   154,801x = 99,957,145,600
5. Step 5: Solve for x
   x = 99,957,145,600/154,801
6. Step 6: Final answer
   x = 645,713.82