Finding the Third Proportional to 1,340,566 and 2,921,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,566 : 2,921,980 = 2,921,980 : x
2. Step 2: Convert to fraction form
   1,340,566/2,921,980 = 2,921,980/x
3. Step 3: Cross multiply
   1,340,566x = 2,921,980 × 2,921,980
4. Step 4: Simplify right side
   1,340,566x = 8,537,967,120,400
5. Step 5: Solve for x
   x = 8,537,967,120,400/1,340,566
6. Step 6: Final answer
   x = 6,368,927.10