Finding the Third Proportional to 140,054 and 217,222

Step by Step Solution

1. Step 1: Write the proportion equation
   140,054 : 217,222 = 217,222 : x
2. Step 2: Convert to fraction form
   140,054/217,222 = 217,222/x
3. Step 3: Cross multiply
   140,054x = 217,222 × 217,222
4. Step 4: Simplify right side
   140,054x = 47,185,397,284
5. Step 5: Solve for x
   x = 47,185,397,284/140,054
6. Step 6: Final answer
   x = 336,908.60