Finding the Third Proportional to 1,338,830 and 1,872,615

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,830 : 1,872,615 = 1,872,615 : x
2. Step 2: Convert to fraction form
   1,338,830/1,872,615 = 1,872,615/x
3. Step 3: Cross multiply
   1,338,830x = 1,872,615 × 1,872,615
4. Step 4: Simplify right side
   1,338,830x = 3,506,686,938,225
5. Step 5: Solve for x
   x = 3,506,686,938,225/1,338,830
6. Step 6: Final answer
   x = 2,619,217.48