Finding the Third Proportional to 155,597 and 316,901

Step by Step Solution

1. Step 1: Write the proportion equation
   155,597 : 316,901 = 316,901 : x
2. Step 2: Convert to fraction form
   155,597/316,901 = 316,901/x
3. Step 3: Cross multiply
   155,597x = 316,901 × 316,901
4. Step 4: Simplify right side
   155,597x = 100,426,243,801
5. Step 5: Solve for x
   x = 100,426,243,801/155,597
6. Step 6: Final answer
   x = 645,425.32