Finding the Third Proportional to 168,064.50 and 361,617

Step by Step Solution

1. Step 1: Write the proportion equation
   168,064.50 : 361,617 = 361,617 : x
2. Step 2: Convert to fraction form
   168,064.50/361,617 = 361,617/x
3. Step 3: Cross multiply
   168,064.50x = 361,617 × 361,617
4. Step 4: Simplify right side
   168,064.50x = 130,766,854,689
5. Step 5: Solve for x
   x = 130,766,854,689/168,064.50
6. Step 6: Final answer
   x = 778,075.41