Finding the Third Proportional to 147,836 and 317,810

Step by Step Solution

1. Step 1: Write the proportion equation
   147,836 : 317,810 = 317,810 : x
2. Step 2: Convert to fraction form
   147,836/317,810 = 317,810/x
3. Step 3: Cross multiply
   147,836x = 317,810 × 317,810
4. Step 4: Simplify right side
   147,836x = 101,003,196,100
5. Step 5: Solve for x
   x = 101,003,196,100/147,836
6. Step 6: Final answer
   x = 683,211.10