Finding the Third Proportional to 3,123,729 and 4,718,876

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123,729 : 4,718,876 = 4,718,876 : x
2. Step 2: Convert to fraction form
   3,123,729/4,718,876 = 4,718,876/x
3. Step 3: Cross multiply
   3,123,729x = 4,718,876 × 4,718,876
4. Step 4: Simplify right side
   3,123,729x = 22,267,790,703,376
5. Step 5: Solve for x
   x = 22,267,790,703,376/3,123,729
6. Step 6: Final answer
   x = 7,128,592.37