Finding the Third Proportional to 152,548 and 317,724

Step by Step Solution

1. Step 1: Write the proportion equation
   152,548 : 317,724 = 317,724 : x
2. Step 2: Convert to fraction form
   152,548/317,724 = 317,724/x
3. Step 3: Cross multiply
   152,548x = 317,724 × 317,724
4. Step 4: Simplify right side
   152,548x = 100,948,540,176
5. Step 5: Solve for x
   x = 100,948,540,176/152,548
6. Step 6: Final answer
   x = 661,749.35