Finding the Third Proportional to 150,559.31 and 221,679.42

Step by Step Solution

1. Step 1: Write the proportion equation
   150,559.31 : 221,679.42 = 221,679.42 : x
2. Step 2: Convert to fraction form
   150,559.31/221,679.42 = 221,679.42/x
3. Step 3: Cross multiply
   150,559.31x = 221,679.42 × 221,679.42
4. Step 4: Simplify right side
   150,559.31x = 49,141,766,082.83
5. Step 5: Solve for x
   x = 49,141,766,082.83/150,559.31
6. Step 6: Final answer
   x = 326,394.73