Finding the Third Proportional to 109,215 and 146,790

Step by Step Solution

1. Step 1: Write the proportion equation
   109,215 : 146,790 = 146,790 : x
2. Step 2: Convert to fraction form
   109,215/146,790 = 146,790/x
3. Step 3: Cross multiply
   109,215x = 146,790 × 146,790
4. Step 4: Simplify right side
   109,215x = 21,547,304,100
5. Step 5: Solve for x
   x = 21,547,304,100/109,215
6. Step 6: Final answer
   x = 197,292.53