Finding the Third Proportional to 1,430,242 and 2,120,615

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,242 : 2,120,615 = 2,120,615 : x
2. Step 2: Convert to fraction form
   1,430,242/2,120,615 = 2,120,615/x
3. Step 3: Cross multiply
   1,430,242x = 2,120,615 × 2,120,615
4. Step 4: Simplify right side
   1,430,242x = 4,497,007,978,225
5. Step 5: Solve for x
   x = 4,497,007,978,225/1,430,242
6. Step 6: Final answer
   x = 3,144,228.72