Finding the Third Proportional to 31,381,070 and 73,280,132

Step by Step Solution

1. Step 1: Write the proportion equation
   31,381,070 : 73,280,132 = 73,280,132 : x
2. Step 2: Convert to fraction form
   31,381,070/73,280,132 = 73,280,132/x
3. Step 3: Cross multiply
   31,381,070x = 73,280,132 × 73,280,132
4. Step 4: Simplify right side
   31,381,070x = 5,369,977,745,937,424
5. Step 5: Solve for x
   x = 5,369,977,745,937,424/31,381,070
6. Step 6: Final answer
   x = 171,121,562.97