Finding the Third Proportional to 159,152 and 215,384

Step by Step Solution

1. Step 1: Write the proportion equation
   159,152 : 215,384 = 215,384 : x
2. Step 2: Convert to fraction form
   159,152/215,384 = 215,384/x
3. Step 3: Cross multiply
   159,152x = 215,384 × 215,384
4. Step 4: Simplify right side
   159,152x = 46,390,267,456
5. Step 5: Solve for x
   x = 46,390,267,456/159,152
6. Step 6: Final answer
   x = 291,484.04