Finding the Third Proportional to 1,430,576 and 2,978,656

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,576 : 2,978,656 = 2,978,656 : x
2. Step 2: Convert to fraction form
   1,430,576/2,978,656 = 2,978,656/x
3. Step 3: Cross multiply
   1,430,576x = 2,978,656 × 2,978,656
4. Step 4: Simplify right side
   1,430,576x = 8,872,391,566,336
5. Step 5: Solve for x
   x = 8,872,391,566,336/1,430,576
6. Step 6: Final answer
   x = 6,201,971.49