Finding the Third Proportional to 1,191,328 and 1,815,072

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,328 : 1,815,072 = 1,815,072 : x
2. Step 2: Convert to fraction form
   1,191,328/1,815,072 = 1,815,072/x
3. Step 3: Cross multiply
   1,191,328x = 1,815,072 × 1,815,072
4. Step 4: Simplify right side
   1,191,328x = 3,294,486,365,184
5. Step 5: Solve for x
   x = 3,294,486,365,184/1,191,328
6. Step 6: Final answer
   x = 2,765,389.86