Finding the Third Proportional to 31,381,038 and 73,280,061

Step by Step Solution

1. Step 1: Write the proportion equation
   31,381,038 : 73,280,061 = 73,280,061 : x
2. Step 2: Convert to fraction form
   31,381,038/73,280,061 = 73,280,061/x
3. Step 3: Cross multiply
   31,381,038x = 73,280,061 × 73,280,061
4. Step 4: Simplify right side
   31,381,038x = 5,369,967,340,163,721
5. Step 5: Solve for x
   x = 5,369,967,340,163,721/31,381,038
6. Step 6: Final answer
   x = 171,121,405.87