Finding the Third Proportional to 31,381,036 and 73,280,047

Step by Step Solution

1. Step 1: Write the proportion equation
   31,381,036 : 73,280,047 = 73,280,047 : x
2. Step 2: Convert to fraction form
   31,381,036/73,280,047 = 73,280,047/x
3. Step 3: Cross multiply
   31,381,036x = 73,280,047 × 73,280,047
4. Step 4: Simplify right side
   31,381,036x = 5,369,965,288,322,209
5. Step 5: Solve for x
   x = 5,369,965,288,322,209/31,381,036
6. Step 6: Final answer
   x = 171,121,351.39