Finding the Third Proportional to 108,868.50 and 222,111

Step by Step Solution

1. Step 1: Write the proportion equation
   108,868.50 : 222,111 = 222,111 : x
2. Step 2: Convert to fraction form
   108,868.50/222,111 = 222,111/x
3. Step 3: Cross multiply
   108,868.50x = 222,111 × 222,111
4. Step 4: Simplify right side
   108,868.50x = 49,333,296,321
5. Step 5: Solve for x
   x = 49,333,296,321/108,868.50
6. Step 6: Final answer
   x = 453,145.73