Finding the Third Proportional to 70,590 and 146,988

Step by Step Solution

1. Step 1: Write the proportion equation
   70,590 : 146,988 = 146,988 : x
2. Step 2: Convert to fraction form
   70,590/146,988 = 146,988/x
3. Step 3: Cross multiply
   70,590x = 146,988 × 146,988
4. Step 4: Simplify right side
   70,590x = 21,605,472,144
5. Step 5: Solve for x
   x = 21,605,472,144/70,590
6. Step 6: Final answer
   x = 306,069.87