Finding the Third Proportional to 1,918,476 and 2,815,506

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,476 : 2,815,506 = 2,815,506 : x
2. Step 2: Convert to fraction form
   1,918,476/2,815,506 = 2,815,506/x
3. Step 3: Cross multiply
   1,918,476x = 2,815,506 × 2,815,506
4. Step 4: Simplify right side
   1,918,476x = 7,927,074,036,036
5. Step 5: Solve for x
   x = 7,927,074,036,036/1,918,476
6. Step 6: Final answer
   x = 4,131,964.14