Finding the Third Proportional to 31,365,146 and 67,943,056

Step by Step Solution

1. Step 1: Write the proportion equation
   31,365,146 : 67,943,056 = 67,943,056 : x
2. Step 2: Convert to fraction form
   31,365,146/67,943,056 = 67,943,056/x
3. Step 3: Cross multiply
   31,365,146x = 67,943,056 × 67,943,056
4. Step 4: Simplify right side
   31,365,146x = 4,616,258,858,619,136
5. Step 5: Solve for x
   x = 4,616,258,858,619,136/31,365,146
6. Step 6: Final answer
   x = 147,177,980.89