Finding the Third Proportional to 151,117.50 and 317,751

Step by Step Solution

1. Step 1: Write the proportion equation
   151,117.50 : 317,751 = 317,751 : x
2. Step 2: Convert to fraction form
   151,117.50/317,751 = 317,751/x
3. Step 3: Cross multiply
   151,117.50x = 317,751 × 317,751
4. Step 4: Simplify right side
   151,117.50x = 100,965,698,001
5. Step 5: Solve for x
   x = 100,965,698,001/151,117.50
6. Step 6: Final answer
   x = 668,127.11