Finding the Third Proportional to 159,658.75 and 266,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,658.75 : 266,086.50 = 266,086.50 : x
2. Step 2: Convert to fraction form
   159,658.75/266,086.50 = 266,086.50/x
3. Step 3: Cross multiply
   159,658.75x = 266,086.50 × 266,086.50
4. Step 4: Simplify right side
   159,658.75x = 70,802,025,482.25
5. Step 5: Solve for x
   x = 70,802,025,482.25/159,658.75
6. Step 6: Final answer
   x = 443,458.47