Finding the Third Proportional to 31,381,028 and 73,280,028

Step by Step Solution

1. Step 1: Write the proportion equation
   31,381,028 : 73,280,028 = 73,280,028 : x
2. Step 2: Convert to fraction form
   31,381,028/73,280,028 = 73,280,028/x
3. Step 3: Cross multiply
   31,381,028x = 73,280,028 × 73,280,028
4. Step 4: Simplify right side
   31,381,028x = 5,369,962,503,680,784
5. Step 5: Solve for x
   x = 5,369,962,503,680,784/31,381,028
6. Step 6: Final answer
   x = 171,121,306.28