Finding the Third Proportional to 159,808.50 and 355,088

Step by Step Solution

1. Step 1: Write the proportion equation
   159,808.50 : 355,088 = 355,088 : x
2. Step 2: Convert to fraction form
   159,808.50/355,088 = 355,088/x
3. Step 3: Cross multiply
   159,808.50x = 355,088 × 355,088
4. Step 4: Simplify right side
   159,808.50x = 126,087,487,744
5. Step 5: Solve for x
   x = 126,087,487,744/159,808.50
6. Step 6: Final answer
   x = 788,991.12