Finding the Third Proportional to 14,476,420 and 31,176,978

Step by Step Solution

1. Step 1: Write the proportion equation
   14,476,420 : 31,176,978 = 31,176,978 : x
2. Step 2: Convert to fraction form
   14,476,420/31,176,978 = 31,176,978/x
3. Step 3: Cross multiply
   14,476,420x = 31,176,978 × 31,176,978
4. Step 4: Simplify right side
   14,476,420x = 972,003,957,212,484
5. Step 5: Solve for x
   x = 972,003,957,212,484/14,476,420
6. Step 6: Final answer
   x = 67,143,945.62