Finding the Third Proportional to 101,218.50 and 214,891

Step by Step Solution

1. Step 1: Write the proportion equation
   101,218.50 : 214,891 = 214,891 : x
2. Step 2: Convert to fraction form
   101,218.50/214,891 = 214,891/x
3. Step 3: Cross multiply
   101,218.50x = 214,891 × 214,891
4. Step 4: Simplify right side
   101,218.50x = 46,178,141,881
5. Step 5: Solve for x
   x = 46,178,141,881/101,218.50
6. Step 6: Final answer
   x = 456,222.35