Finding the Third Proportional to 1,354,920 and 2,979,321

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354,920 : 2,979,321 = 2,979,321 : x
2. Step 2: Convert to fraction form
   1,354,920/2,979,321 = 2,979,321/x
3. Step 3: Cross multiply
   1,354,920x = 2,979,321 × 2,979,321
4. Step 4: Simplify right side
   1,354,920x = 8,876,353,621,041
5. Step 5: Solve for x
   x = 8,876,353,621,041/1,354,920
6. Step 6: Final answer
   x = 6,551,201.27