Finding the Third Proportional to 1,214,549 and 1,815,132

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,549 : 1,815,132 = 1,815,132 : x
2. Step 2: Convert to fraction form
   1,214,549/1,815,132 = 1,815,132/x
3. Step 3: Cross multiply
   1,214,549x = 1,815,132 × 1,815,132
4. Step 4: Simplify right side
   1,214,549x = 3,294,704,177,424
5. Step 5: Solve for x
   x = 3,294,704,177,424/1,214,549
6. Step 6: Final answer
   x = 2,712,697.62