Finding the Third Proportional to 66,857.50 and 146,838

Step by Step Solution

1. Step 1: Write the proportion equation
   66,857.50 : 146,838 = 146,838 : x
2. Step 2: Convert to fraction form
   66,857.50/146,838 = 146,838/x
3. Step 3: Cross multiply
   66,857.50x = 146,838 × 146,838
4. Step 4: Simplify right side
   66,857.50x = 21,561,398,244
5. Step 5: Solve for x
   x = 21,561,398,244/66,857.50
6. Step 6: Final answer
   x = 322,497.82