Finding the Third Proportional to 159,807.50 and 355,086

Step by Step Solution

1. Step 1: Write the proportion equation
   159,807.50 : 355,086 = 355,086 : x
2. Step 2: Convert to fraction form
   159,807.50/355,086 = 355,086/x
3. Step 3: Cross multiply
   159,807.50x = 355,086 × 355,086
4. Step 4: Simplify right side
   159,807.50x = 126,086,067,396
5. Step 5: Solve for x
   x = 126,086,067,396/159,807.50
6. Step 6: Final answer
   x = 788,987.17