Finding the Third Proportional to 27,972,176 and 42,215,288

Step by Step Solution

1. Step 1: Write the proportion equation
   27,972,176 : 42,215,288 = 42,215,288 : x
2. Step 2: Convert to fraction form
   27,972,176/42,215,288 = 42,215,288/x
3. Step 3: Cross multiply
   27,972,176x = 42,215,288 × 42,215,288
4. Step 4: Simplify right side
   27,972,176x = 1,782,130,540,922,944
5. Step 5: Solve for x
   x = 1,782,130,540,922,944/27,972,176
6. Step 6: Final answer
   x = 63,710,829.68