Finding the Third Proportional to 215,108 and 334,164

Step by Step Solution

1. Step 1: Write the proportion equation
   215,108 : 334,164 = 334,164 : x
2. Step 2: Convert to fraction form
   215,108/334,164 = 334,164/x
3. Step 3: Cross multiply
   215,108x = 334,164 × 334,164
4. Step 4: Simplify right side
   215,108x = 111,665,578,896
5. Step 5: Solve for x
   x = 111,665,578,896/215,108
6. Step 6: Final answer
   x = 519,114.02