Finding the Third Proportional to 31,101,876 and 69,106,878

Step by Step Solution

1. Step 1: Write the proportion equation
   31,101,876 : 69,106,878 = 69,106,878 : x
2. Step 2: Convert to fraction form
   31,101,876/69,106,878 = 69,106,878/x
3. Step 3: Cross multiply
   31,101,876x = 69,106,878 × 69,106,878
4. Step 4: Simplify right side
   31,101,876x = 4,775,760,586,906,884
5. Step 5: Solve for x
   x = 4,775,760,586,906,884/31,101,876
6. Step 6: Final answer
   x = 153,552,171.16