Finding the Third Proportional to 31,103,618 and 67,867,192

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103,618 : 67,867,192 = 67,867,192 : x
2. Step 2: Convert to fraction form
   31,103,618/67,867,192 = 67,867,192/x
3. Step 3: Cross multiply
   31,103,618x = 67,867,192 × 67,867,192
4. Step 4: Simplify right side
   31,103,618x = 4,605,955,749,964,864
5. Step 5: Solve for x
   x = 4,605,955,749,964,864/31,103,618
6. Step 6: Final answer
   x = 148,084,243.77