Finding the Third Proportional to 159,034 and 215,223

Step by Step Solution

1. Step 1: Write the proportion equation
   159,034 : 215,223 = 215,223 : x
2. Step 2: Convert to fraction form
   159,034/215,223 = 215,223/x
3. Step 3: Cross multiply
   159,034x = 215,223 × 215,223
4. Step 4: Simplify right side
   159,034x = 46,320,939,729
5. Step 5: Solve for x
   x = 46,320,939,729/159,034
6. Step 6: Final answer
   x = 291,264.38