Finding the Third Proportional to 31,527,618 and 67,917,180

Step by Step Solution

1. Step 1: Write the proportion equation
   31,527,618 : 67,917,180 = 67,917,180 : x
2. Step 2: Convert to fraction form
   31,527,618/67,917,180 = 67,917,180/x
3. Step 3: Cross multiply
   31,527,618x = 67,917,180 × 67,917,180
4. Step 4: Simplify right side
   31,527,618x = 4,612,743,339,152,400
5. Step 5: Solve for x
   x = 4,612,743,339,152,400/31,527,618
6. Step 6: Final answer
   x = 146,308,019.18