Finding the Third Proportional to 1,430,588 and 2,978,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,588 : 2,978,680 = 2,978,680 : x
2. Step 2: Convert to fraction form
   1,430,588/2,978,680 = 2,978,680/x
3. Step 3: Cross multiply
   1,430,588x = 2,978,680 × 2,978,680
4. Step 4: Simplify right side
   1,430,588x = 8,872,534,542,400
5. Step 5: Solve for x
   x = 8,872,534,542,400/1,430,588
6. Step 6: Final answer
   x = 6,202,019.41