Finding the Third Proportional to 70,520 and 146,870

Step by Step Solution

1. Step 1: Write the proportion equation
   70,520 : 146,870 = 146,870 : x
2. Step 2: Convert to fraction form
   70,520/146,870 = 146,870/x
3. Step 3: Cross multiply
   70,520x = 146,870 × 146,870
4. Step 4: Simplify right side
   70,520x = 21,570,796,900
5. Step 5: Solve for x
   x = 21,570,796,900/70,520
6. Step 6: Final answer
   x = 305,881.98