Finding the Third Proportional to 108,423 and 166,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,423 : 166,858.50 = 166,858.50 : x
2. Step 2: Convert to fraction form
   108,423/166,858.50 = 166,858.50/x
3. Step 3: Cross multiply
   108,423x = 166,858.50 × 166,858.50
4. Step 4: Simplify right side
   108,423x = 27,841,759,022.25
5. Step 5: Solve for x
   x = 27,841,759,022.25/108,423
6. Step 6: Final answer
   x = 256,788.31