Finding the Third Proportional to 173,889 and 362,790

Step by Step Solution

1. Step 1: Write the proportion equation
   173,889 : 362,790 = 362,790 : x
2. Step 2: Convert to fraction form
   173,889/362,790 = 362,790/x
3. Step 3: Cross multiply
   173,889x = 362,790 × 362,790
4. Step 4: Simplify right side
   173,889x = 131,616,584,100
5. Step 5: Solve for x
   x = 131,616,584,100/173,889
6. Step 6: Final answer
   x = 756,900