Finding the Third Proportional to 155,526 and 317,820

Step by Step Solution

1. Step 1: Write the proportion equation
   155,526 : 317,820 = 317,820 : x
2. Step 2: Convert to fraction form
   155,526/317,820 = 317,820/x
3. Step 3: Cross multiply
   155,526x = 317,820 × 317,820
4. Step 4: Simplify right side
   155,526x = 101,009,552,400
5. Step 5: Solve for x
   x = 101,009,552,400/155,526
6. Step 6: Final answer
   x = 649,470.52