Finding the Third Proportional to 1,350,876 and 2,139,072

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350,876 : 2,139,072 = 2,139,072 : x
2. Step 2: Convert to fraction form
   1,350,876/2,139,072 = 2,139,072/x
3. Step 3: Cross multiply
   1,350,876x = 2,139,072 × 2,139,072
4. Step 4: Simplify right side
   1,350,876x = 4,575,629,021,184
5. Step 5: Solve for x
   x = 4,575,629,021,184/1,350,876
6. Step 6: Final answer
   x = 3,387,156.94