Finding the Third Proportional to 108,805.50 and 166,428

Step by Step Solution

1. Step 1: Write the proportion equation
   108,805.50 : 166,428 = 166,428 : x
2. Step 2: Convert to fraction form
   108,805.50/166,428 = 166,428/x
3. Step 3: Cross multiply
   108,805.50x = 166,428 × 166,428
4. Step 4: Simplify right side
   108,805.50x = 27,698,279,184
5. Step 5: Solve for x
   x = 27,698,279,184/108,805.50
6. Step 6: Final answer
   x = 254,566.90