Finding the Third Proportional to 31,381,036 and 73,280,056

Step by Step Solution

1. Step 1: Write the proportion equation
   31,381,036 : 73,280,056 = 73,280,056 : x
2. Step 2: Convert to fraction form
   31,381,036/73,280,056 = 73,280,056/x
3. Step 3: Cross multiply
   31,381,036x = 73,280,056 × 73,280,056
4. Step 4: Simplify right side
   31,381,036x = 5,369,966,607,363,136
5. Step 5: Solve for x
   x = 5,369,966,607,363,136/31,381,036
6. Step 6: Final answer
   x = 171,121,393.42