Finding the Third Proportional to 151,452 and 220,128.75

Step by Step Solution

1. Step 1: Write the proportion equation
   151,452 : 220,128.75 = 220,128.75 : x
2. Step 2: Convert to fraction form
   151,452/220,128.75 = 220,128.75/x
3. Step 3: Cross multiply
   151,452x = 220,128.75 × 220,128.75
4. Step 4: Simplify right side
   151,452x = 48,456,666,576.56
5. Step 5: Solve for x
   x = 48,456,666,576.56/151,452
6. Step 6: Final answer
   x = 319,947.35